81974340

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:171

約数の個数: 288

約数和(自身を含む): 311351040

約数和(自身を除く): 229376700

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, 43, 45, 51, 60, 63, 68, 70, 84, 85, 86, 89, 90, 102, 105, 119, 126, 129, 140, 153, 170, 172, 178, 180, 204, 210, 215, 238, 252, 255, 258, 267, 301, 306, 315, 340, 356, 357, 387, 420, 430, 445, 476, 510, 516, 534, 595, 602, 612, 623, 630, 645, 714, 731, 765, 774, 801, 860, 890, 903, 1020, 1068, 1071, 1190, 1204, 1246, 1260, 1290, 1335, 1428, 1462, 1505, 1513, 1530, 1548, 1602, 1780, 1785, 1806, 1869, 1935, 2142, 2193, 2380, 2492, 2580, 2670, 2709, 2924, 3010, 3026, 3060, 3115, 3204, 3570, 3612, 3655, 3738, 3827, 3870, 4005, 4284, 4386, 4515, 4539, 5117, 5340, 5355, 5418, 5607, 6020, 6052, 6230, 6579, 7140, 7310, 7476, 7565, 7654, 7740, 8010, 8772, 9030, 9078, 9345, 10234, 10591, 10710, 10836, 10965, 11214, 11481, 12460, 13158, 13545, 13617, 14620, 15130, 15308, 15351, 16020, 18060, 18156, 18690, 19135, 20468, 21182, 21420, 21930, 22428, 22695, 22962, 25585, 26316, 26789, 27090, 27234, 28035, 30260, 30702, 31773, 32895, 34443, 37380, 38270, 42364, 43860, 45390, 45924, 46053, 51170, 52955, 53578, 54180, 54468, 56070, 57405, 61404, 63546, 65059, 65790, 68085, 68886, 76540, 76755, 80367, 90780, 92106, 95319, 102340, 105910, 107156, 112140, 114810, 127092, 130118, 131580, 133945, 136170, 137772, 153510, 158865, 160734, 172215, 184212, 190638, 195177, 211820, 229620, 230265, 241101, 260236, 267890, 272340, 307020, 317730, 321468, 325295, 344430, 381276, 390354, 401835, 455413, 460530, 476595, 482202, 535780, 585531, 635460, 650590, 688860, 780708, 803670, 910826, 921060, 953190, 964404, 975885, 1171062, 1205505, 1301180, 1366239, 1607340, 1821652, 1906380, 1951770, 2277065, 2342124, 2411010, 2732478, 2927655, 3903540, 4098717, 4554130, 4822020, 5464956, 5855310, 6831195, 8197434, 9108260, 11710620, 13662390, 16394868, 20493585, 27324780, 40987170, 81974340]

約数ペア:

[(1, 81974340), (2, 40987170), (3, 27324780), (4, 20493585), (5, 16394868), (6, 13662390), (7, 11710620), (9, 9108260), (10, 8197434), (12, 6831195), (14, 5855310), (15, 5464956), (17, 4822020), (18, 4554130), (20, 4098717), (21, 3903540), (28, 2927655), (30, 2732478), (34, 2411010), (35, 2342124), (36, 2277065), (42, 1951770), (43, 1906380), (45, 1821652), (51, 1607340), (60, 1366239), (63, 1301180), (68, 1205505), (70, 1171062), (84, 975885), (85, 964404), (86, 953190), (89, 921060), (90, 910826), (102, 803670), (105, 780708), (119, 688860), (126, 650590), (129, 635460), (140, 585531), (153, 535780), (170, 482202), (172, 476595), (178, 460530), (180, 455413), (204, 401835), (210, 390354), (215, 381276), (238, 344430), (252, 325295), (255, 321468), (258, 317730), (267, 307020), (301, 272340), (306, 267890), (315, 260236), (340, 241101), (356, 230265), (357, 229620), (387, 211820), (420, 195177), (430, 190638), (445, 184212), (476, 172215), (510, 160734), (516, 158865), (534, 153510), (595, 137772), (602, 136170), (612, 133945), (623, 131580), (630, 130118), (645, 127092), (714, 114810), (731, 112140), (765, 107156), (774, 105910), (801, 102340), (860, 95319), (890, 92106), (903, 90780), (1020, 80367), (1068, 76755), (1071, 76540), (1190, 68886), (1204, 68085), (1246, 65790), (1260, 65059), (1290, 63546), (1335, 61404), (1428, 57405), (1462, 56070), (1505, 54468), (1513, 54180), (1530, 53578), (1548, 52955), (1602, 51170), (1780, 46053), (1785, 45924), (1806, 45390), (1869, 43860), (1935, 42364), (2142, 38270), (2193, 37380), (2380, 34443), (2492, 32895), (2580, 31773), (2670, 30702), (2709, 30260), (2924, 28035), (3010, 27234), (3026, 27090), (3060, 26789), (3115, 26316), (3204, 25585), (3570, 22962), (3612, 22695), (3655, 22428), (3738, 21930), (3827, 21420), (3870, 21182), (4005, 20468), (4284, 19135), (4386, 18690), (4515, 18156), (4539, 18060), (5117, 16020), (5340, 15351), (5355, 15308), (5418, 15130), (5607, 14620), (6020, 13617), (6052, 13545), (6230, 13158), (6579, 12460), (7140, 11481), (7310, 11214), (7476, 10965), (7565, 10836), (7654, 10710), (7740, 10591), (8010, 10234), (8772, 9345), (9030, 9078)]