80539240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{64951}}^1$

素因数の和:64993

約数の個数: 32

約数和(自身を含む): 187061760

約数和(自身を除く): 106522520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 64951, 129902, 259804, 324755, 519608, 649510, 1299020, 2013481, 2598040, 4026962, 8053924, 10067405, 16107848, 20134810, 40269620, 80539240]

約数ペア:

[(1, 80539240), (2, 40269620), (4, 20134810), (5, 16107848), (8, 10067405), (10, 8053924), (20, 4026962), (31, 2598040), (40, 2013481), (62, 1299020), (124, 649510), (155, 519608), (248, 324755), (310, 259804), (620, 129902), (1240, 64951)]