25003980

素因数分解:

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

素因数の和:4527

約数の個数: 72

約数和(自身を含む): 78309504

約数和(自身を除く): 53305524

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, 4481, 5580, 8962, 13443, 17924, 22405, 26886, 40329, 44810, 53772, 67215, 80658, 89620, 134430, 138911, 161316, 201645, 268860, 277822, 403290, 416733, 555644, 694555, 806580, 833466, 1250199, 1389110, 1666932, 2083665, 2500398, 2778220, 4167330, 5000796, 6250995, 8334660, 12501990, 25003980]

約数ペア:

[(1, 25003980), (2, 12501990), (3, 8334660), (4, 6250995), (5, 5000796), (6, 4167330), (9, 2778220), (10, 2500398), (12, 2083665), (15, 1666932), (18, 1389110), (20, 1250199), (30, 833466), (31, 806580), (36, 694555), (45, 555644), (60, 416733), (62, 403290), (90, 277822), (93, 268860), (124, 201645), (155, 161316), (180, 138911), (186, 134430), (279, 89620), (310, 80658), (372, 67215), (465, 53772), (558, 44810), (620, 40329), (930, 26886), (1116, 22405), (1395, 17924), (1860, 13443), (2790, 8962), (4481, 5580)]