3987640

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{761}}^1$

素因数の和:903

約数の個数: 32

約数和(自身を含む): 9052560

約数和(自身を除く): 5064920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 761, 1048, 1310, 1522, 2620, 3044, 3805, 5240, 6088, 7610, 15220, 30440, 99691, 199382, 398764, 498455, 797528, 996910, 1993820, 3987640]

約数ペア:

[(1, 3987640), (2, 1993820), (4, 996910), (5, 797528), (8, 498455), (10, 398764), (20, 199382), (40, 99691), (131, 30440), (262, 15220), (524, 7610), (655, 6088), (761, 5240), (1048, 3805), (1310, 3044), (1522, 2620)]