8157500

素因数分解:

$2^2\times 5^4\times {\mathrm{13}}^1\times {\mathrm{251}}^1$

素因数の和:288

約数の個数: 60

約数和(自身を含む): 19287576

約数和(自身を除く): 11130076

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 251, 260, 325, 500, 502, 625, 650, 1004, 1250, 1255, 1300, 1625, 2500, 2510, 3250, 3263, 5020, 6275, 6500, 6526, 8125, 12550, 13052, 16250, 16315, 25100, 31375, 32500, 32630, 62750, 65260, 81575, 125500, 156875, 163150, 313750, 326300, 407875, 627500, 815750, 1631500, 2039375, 4078750, 8157500]

約数ペア:

[(1, 8157500), (2, 4078750), (4, 2039375), (5, 1631500), (10, 815750), (13, 627500), (20, 407875), (25, 326300), (26, 313750), (50, 163150), (52, 156875), (65, 125500), (100, 81575), (125, 65260), (130, 62750), (250, 32630), (251, 32500), (260, 31375), (325, 25100), (500, 16315), (502, 16250), (625, 13052), (650, 12550), (1004, 8125), (1250, 6526), (1255, 6500), (1300, 6275), (1625, 5020), (2500, 3263), (2510, 3250)]