31807240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{227}}^1$

素因数の和:382

約数の個数: 64

約数和(自身を含む): 74856960

約数和(自身を除く): 43049720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 113, 124, 155, 226, 227, 248, 310, 452, 454, 565, 620, 904, 908, 1130, 1135, 1240, 1816, 2260, 2270, 3503, 4520, 4540, 7006, 7037, 9080, 14012, 14074, 17515, 25651, 28024, 28148, 35030, 35185, 51302, 56296, 70060, 70370, 102604, 128255, 140120, 140740, 205208, 256510, 281480, 513020, 795181, 1026040, 1590362, 3180724, 3975905, 6361448, 7951810, 15903620, 31807240]

約数ペア:

[(1, 31807240), (2, 15903620), (4, 7951810), (5, 6361448), (8, 3975905), (10, 3180724), (20, 1590362), (31, 1026040), (40, 795181), (62, 513020), (113, 281480), (124, 256510), (155, 205208), (226, 140740), (227, 140120), (248, 128255), (310, 102604), (452, 70370), (454, 70060), (565, 56296), (620, 51302), (904, 35185), (908, 35030), (1130, 28148), (1135, 28024), (1240, 25651), (1816, 17515), (2260, 14074), (2270, 14012), (3503, 9080), (4520, 7037), (4540, 7006)]