661513860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{347}}^1$

素因数の和:475

約数の個数: 288

約数和(自身を含む): 2462503680

約数和(自身を除く): 1800989820

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 34, 35, 36, 42, 45, 51, 60, 63, 68, 70, 84, 85, 89, 90, 102, 105, 119, 126, 140, 153, 170, 178, 180, 204, 210, 238, 252, 255, 267, 306, 315, 340, 347, 356, 357, 420, 445, 476, 510, 534, 595, 612, 623, 630, 694, 714, 765, 801, 890, 1020, 1041, 1068, 1071, 1190, 1246, 1260, 1335, 1388, 1428, 1513, 1530, 1602, 1735, 1780, 1785, 1869, 2082, 2142, 2380, 2429, 2492, 2670, 3026, 3060, 3115, 3123, 3204, 3470, 3570, 3738, 4005, 4164, 4284, 4539, 4858, 5205, 5340, 5355, 5607, 5899, 6052, 6230, 6246, 6940, 7140, 7287, 7476, 7565, 8010, 9078, 9345, 9716, 10410, 10591, 10710, 11214, 11798, 12145, 12460, 12492, 13617, 14574, 15130, 15615, 16020, 17697, 18156, 18690, 20820, 21182, 21420, 21861, 22428, 22695, 23596, 24290, 27234, 28035, 29148, 29495, 30260, 30883, 31230, 31773, 35394, 36435, 37380, 41293, 42364, 43722, 45390, 48580, 52955, 53091, 54468, 56070, 58990, 61766, 62460, 63546, 68085, 70788, 72870, 82586, 87444, 88485, 90780, 92649, 95319, 105910, 106182, 109305, 112140, 117980, 123532, 123879, 127092, 136170, 145740, 154415, 158865, 165172, 176970, 185298, 190638, 206465, 211820, 212364, 216181, 218610, 247758, 265455, 272340, 277947, 308830, 317730, 353940, 370596, 371637, 381276, 412930, 432362, 437220, 463245, 476595, 495516, 525011, 530910, 555894, 617660, 619395, 635460, 648543, 743274, 825860, 864724, 926490, 953190, 1050022, 1061820, 1080905, 1111788, 1238790, 1297086, 1389735, 1486548, 1575033, 1852980, 1858185, 1906380, 1945629, 2100044, 2161810, 2477580, 2594172, 2625055, 2779470, 3150066, 3242715, 3675077, 3716370, 3891258, 4323620, 4725099, 5250110, 5558940, 6300132, 6485430, 7350154, 7432740, 7782516, 7875165, 9450198, 9728145, 10500220, 11025231, 12970860, 14700308, 15750330, 18375385, 18900396, 19456290, 22050462, 23625495, 31500660, 33075693, 36750770, 38912580, 44100924, 47250990, 55126155, 66151386, 73501540, 94501980, 110252310, 132302772, 165378465, 220504620, 330756930, 661513860]

約数ペア:

[(1, 661513860), (2, 330756930), (3, 220504620), (4, 165378465), (5, 132302772), (6, 110252310), (7, 94501980), (9, 73501540), (10, 66151386), (12, 55126155), (14, 47250990), (15, 44100924), (17, 38912580), (18, 36750770), (20, 33075693), (21, 31500660), (28, 23625495), (30, 22050462), (34, 19456290), (35, 18900396), (36, 18375385), (42, 15750330), (45, 14700308), (51, 12970860), (60, 11025231), (63, 10500220), (68, 9728145), (70, 9450198), (84, 7875165), (85, 7782516), (89, 7432740), (90, 7350154), (102, 6485430), (105, 6300132), (119, 5558940), (126, 5250110), (140, 4725099), (153, 4323620), (170, 3891258), (178, 3716370), (180, 3675077), (204, 3242715), (210, 3150066), (238, 2779470), (252, 2625055), (255, 2594172), (267, 2477580), (306, 2161810), (315, 2100044), (340, 1945629), (347, 1906380), (356, 1858185), (357, 1852980), (420, 1575033), (445, 1486548), (476, 1389735), (510, 1297086), (534, 1238790), (595, 1111788), (612, 1080905), (623, 1061820), (630, 1050022), (694, 953190), (714, 926490), (765, 864724), (801, 825860), (890, 743274), (1020, 648543), (1041, 635460), (1068, 619395), (1071, 617660), (1190, 555894), (1246, 530910), (1260, 525011), (1335, 495516), (1388, 476595), (1428, 463245), (1513, 437220), (1530, 432362), (1602, 412930), (1735, 381276), (1780, 371637), (1785, 370596), (1869, 353940), (2082, 317730), (2142, 308830), (2380, 277947), (2429, 272340), (2492, 265455), (2670, 247758), (3026, 218610), (3060, 216181), (3115, 212364), (3123, 211820), (3204, 206465), (3470, 190638), (3570, 185298), (3738, 176970), (4005, 165172), (4164, 158865), (4284, 154415), (4539, 145740), (4858, 136170), (5205, 127092), (5340, 123879), (5355, 123532), (5607, 117980), (5899, 112140), (6052, 109305), (6230, 106182), (6246, 105910), (6940, 95319), (7140, 92649), (7287, 90780), (7476, 88485), (7565, 87444), (8010, 82586), (9078, 72870), (9345, 70788), (9716, 68085), (10410, 63546), (10591, 62460), (10710, 61766), (11214, 58990), (11798, 56070), (12145, 54468), (12460, 53091), (12492, 52955), (13617, 48580), (14574, 45390), (15130, 43722), (15615, 42364), (16020, 41293), (17697, 37380), (18156, 36435), (18690, 35394), (20820, 31773), (21182, 31230), (21420, 30883), (21861, 30260), (22428, 29495), (22695, 29148), (23596, 28035), (24290, 27234)]