8978220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1609}}^1$

素因数の和:1655

約数の個数: 72

約数和(自身を含む): 28129920

約数和(自身を除く): 19151700

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, 1609, 1860, 2790, 3218, 4827, 5580, 6436, 8045, 9654, 14481, 16090, 19308, 24135, 28962, 32180, 48270, 49879, 57924, 72405, 96540, 99758, 144810, 149637, 199516, 249395, 289620, 299274, 448911, 498790, 598548, 748185, 897822, 997580, 1496370, 1795644, 2244555, 2992740, 4489110, 8978220]

約数ペア:

[(1, 8978220), (2, 4489110), (3, 2992740), (4, 2244555), (5, 1795644), (6, 1496370), (9, 997580), (10, 897822), (12, 748185), (15, 598548), (18, 498790), (20, 448911), (30, 299274), (31, 289620), (36, 249395), (45, 199516), (60, 149637), (62, 144810), (90, 99758), (93, 96540), (124, 72405), (155, 57924), (180, 49879), (186, 48270), (279, 32180), (310, 28962), (372, 24135), (465, 19308), (558, 16090), (620, 14481), (930, 9654), (1116, 8045), (1395, 6436), (1609, 5580), (1860, 4827), (2790, 3218)]