128490660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{23027}}^1$

素因数の和:23073

約数の個数: 72

約数和(自身を含む): 402345216

約数和(自身を除く): 273854556

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, 23027, 46054, 69081, 92108, 115135, 138162, 207243, 230270, 276324, 345405, 414486, 460540, 690810, 713837, 828972, 1036215, 1381620, 1427674, 2072430, 2141511, 2855348, 3569185, 4144860, 4283022, 6424533, 7138370, 8566044, 10707555, 12849066, 14276740, 21415110, 25698132, 32122665, 42830220, 64245330, 128490660]

約数ペア:

[(1, 128490660), (2, 64245330), (3, 42830220), (4, 32122665), (5, 25698132), (6, 21415110), (9, 14276740), (10, 12849066), (12, 10707555), (15, 8566044), (18, 7138370), (20, 6424533), (30, 4283022), (31, 4144860), (36, 3569185), (45, 2855348), (60, 2141511), (62, 2072430), (90, 1427674), (93, 1381620), (124, 1036215), (155, 828972), (180, 713837), (186, 690810), (279, 460540), (310, 414486), (372, 345405), (465, 276324), (558, 230270), (620, 207243), (930, 138162), (1116, 115135), (1395, 92108), (1860, 69081), (2790, 46054), (5580, 23027)]