1213309620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{217439}}^1$

素因数の和:217485

約数の個数: 72

約数和(自身を含む): 3799111680

約数和(自身を除く): 2585802060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 217439, 434878, 652317, 869756, 1087195, 1304634, 1956951, 2174390, 2609268, 3261585, 3913902, 4348780, 6523170, 6740609, 7827804, 9784755, 13046340, 13481218, 19569510, 20221827, 26962436, 33703045, 39139020, 40443654, 60665481, 67406090, 80887308, 101109135, 121330962, 134812180, 202218270, 242661924, 303327405, 404436540, 606654810, 1213309620]

約数ペア:

[(1, 1213309620), (2, 606654810), (3, 404436540), (4, 303327405), (5, 242661924), (6, 202218270), (9, 134812180), (10, 121330962), (12, 101109135), (15, 80887308), (18, 67406090), (20, 60665481), (30, 40443654), (31, 39139020), (36, 33703045), (45, 26962436), (60, 20221827), (62, 19569510), (90, 13481218), (93, 13046340), (124, 9784755), (155, 7827804), (180, 6740609), (186, 6523170), (279, 4348780), (310, 3913902), (372, 3261585), (465, 2609268), (558, 2174390), (620, 1956951), (930, 1304634), (1116, 1087195), (1395, 869756), (1860, 652317), (2790, 434878), (5580, 217439)]