1220940

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:61

約数の個数: 192

約数和(自身を含む): 4838400

約数和(自身を除く): 3617460

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 19, 20, 21, 27, 28, 30, 34, 35, 36, 38, 42, 45, 51, 54, 57, 60, 63, 68, 70, 76, 84, 85, 90, 95, 102, 105, 108, 114, 119, 126, 133, 135, 140, 153, 170, 171, 180, 189, 190, 204, 210, 228, 238, 252, 255, 266, 270, 285, 306, 315, 323, 340, 342, 357, 378, 380, 399, 420, 459, 476, 510, 513, 532, 540, 570, 595, 612, 630, 646, 665, 684, 714, 756, 765, 798, 855, 918, 945, 969, 1020, 1026, 1071, 1140, 1190, 1197, 1260, 1292, 1330, 1428, 1530, 1596, 1615, 1710, 1785, 1836, 1890, 1938, 1995, 2052, 2142, 2261, 2295, 2380, 2394, 2565, 2660, 2907, 3060, 3213, 3230, 3420, 3570, 3591, 3780, 3876, 3990, 4284, 4522, 4590, 4788, 4845, 5130, 5355, 5814, 5985, 6426, 6460, 6783, 7140, 7182, 7980, 8721, 9044, 9180, 9690, 10260, 10710, 11305, 11628, 11970, 12852, 13566, 14364, 14535, 16065, 17442, 17955, 19380, 20349, 21420, 22610, 23940, 27132, 29070, 32130, 33915, 34884, 35910, 40698, 43605, 45220, 58140, 61047, 64260, 67830, 71820, 81396, 87210, 101745, 122094, 135660, 174420, 203490, 244188, 305235, 406980, 610470, 1220940]

約数ペア:

[(1, 1220940), (2, 610470), (3, 406980), (4, 305235), (5, 244188), (6, 203490), (7, 174420), (9, 135660), (10, 122094), (12, 101745), (14, 87210), (15, 81396), (17, 71820), (18, 67830), (19, 64260), (20, 61047), (21, 58140), (27, 45220), (28, 43605), (30, 40698), (34, 35910), (35, 34884), (36, 33915), (38, 32130), (42, 29070), (45, 27132), (51, 23940), (54, 22610), (57, 21420), (60, 20349), (63, 19380), (68, 17955), (70, 17442), (76, 16065), (84, 14535), (85, 14364), (90, 13566), (95, 12852), (102, 11970), (105, 11628), (108, 11305), (114, 10710), (119, 10260), (126, 9690), (133, 9180), (135, 9044), (140, 8721), (153, 7980), (170, 7182), (171, 7140), (180, 6783), (189, 6460), (190, 6426), (204, 5985), (210, 5814), (228, 5355), (238, 5130), (252, 4845), (255, 4788), (266, 4590), (270, 4522), (285, 4284), (306, 3990), (315, 3876), (323, 3780), (340, 3591), (342, 3570), (357, 3420), (378, 3230), (380, 3213), (399, 3060), (420, 2907), (459, 2660), (476, 2565), (510, 2394), (513, 2380), (532, 2295), (540, 2261), (570, 2142), (595, 2052), (612, 1995), (630, 1938), (646, 1890), (665, 1836), (684, 1785), (714, 1710), (756, 1615), (765, 1596), (798, 1530), (855, 1428), (918, 1330), (945, 1292), (969, 1260), (1020, 1197), (1026, 1190), (1071, 1140)]