12501990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4481}}^1$

素因数の和:4525

約数の個数: 48

約数和(自身を含む): 33561216

約数和(自身を除く): 21059226

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 279, 310, 465, 558, 930, 1395, 2790, 4481, 8962, 13443, 22405, 26886, 40329, 44810, 67215, 80658, 134430, 138911, 201645, 277822, 403290, 416733, 694555, 833466, 1250199, 1389110, 2083665, 2500398, 4167330, 6250995, 12501990]

約数ペア:

[(1, 12501990), (2, 6250995), (3, 4167330), (5, 2500398), (6, 2083665), (9, 1389110), (10, 1250199), (15, 833466), (18, 694555), (30, 416733), (31, 403290), (45, 277822), (62, 201645), (90, 138911), (93, 134430), (155, 80658), (186, 67215), (279, 44810), (310, 40329), (465, 26886), (558, 22405), (930, 13443), (1395, 8962), (2790, 4481)]