4078750

素因数分解:

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

素因数の和:286

約数の個数: 40

約数和(自身を含む): 8266104

約数和(自身を除く): 4187354

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 251, 325, 502, 625, 650, 1250, 1255, 1625, 2510, 3250, 3263, 6275, 6526, 8125, 12550, 16250, 16315, 31375, 32630, 62750, 81575, 156875, 163150, 313750, 407875, 815750, 2039375, 4078750]

約数ペア:

[(1, 4078750), (2, 2039375), (5, 815750), (10, 407875), (13, 313750), (25, 163150), (26, 156875), (50, 81575), (65, 62750), (125, 32630), (130, 31375), (250, 16315), (251, 16250), (325, 12550), (502, 8125), (625, 6526), (650, 6275), (1250, 3263), (1255, 3250), (1625, 2510)]