4003960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3229}}^1$

素因数の和:3271

約数の個数: 32

約数和(自身を含む): 9302400

約数和(自身を除く): 5298440

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 3229, 6458, 12916, 16145, 25832, 32290, 64580, 100099, 129160, 200198, 400396, 500495, 800792, 1000990, 2001980, 4003960]

約数ペア:

[(1, 4003960), (2, 2001980), (4, 1000990), (5, 800792), (8, 500495), (10, 400396), (20, 200198), (31, 129160), (40, 100099), (62, 64580), (124, 32290), (155, 25832), (248, 16145), (310, 12916), (620, 6458), (1240, 3229)]