2551250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{157}}^1$

素因数の和:192

約数の個数: 40

約数和(自身を含む): 5182716

約数和(自身を除く): 2631466

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 157, 250, 314, 325, 625, 650, 785, 1250, 1570, 1625, 2041, 3250, 3925, 4082, 7850, 8125, 10205, 16250, 19625, 20410, 39250, 51025, 98125, 102050, 196250, 255125, 510250, 1275625, 2551250]

約数ペア:

[(1, 2551250), (2, 1275625), (5, 510250), (10, 255125), (13, 196250), (25, 102050), (26, 98125), (50, 51025), (65, 39250), (125, 20410), (130, 19625), (157, 16250), (250, 10205), (314, 8125), (325, 7850), (625, 4082), (650, 3925), (785, 3250), (1250, 2041), (1570, 1625)]