25278500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{3889}}^1$

素因数の和:3921

約数の個数: 48

約数和(自身を含む): 59470320

約数和(自身を除く): 34191820

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 1300, 1625, 3250, 3889, 6500, 7778, 15556, 19445, 38890, 50557, 77780, 97225, 101114, 194450, 202228, 252785, 388900, 486125, 505570, 972250, 1011140, 1263925, 1944500, 2527850, 5055700, 6319625, 12639250, 25278500]

約数ペア:

[(1, 25278500), (2, 12639250), (4, 6319625), (5, 5055700), (10, 2527850), (13, 1944500), (20, 1263925), (25, 1011140), (26, 972250), (50, 505570), (52, 486125), (65, 388900), (100, 252785), (125, 202228), (130, 194450), (250, 101114), (260, 97225), (325, 77780), (500, 50557), (650, 38890), (1300, 19445), (1625, 15556), (3250, 7778), (3889, 6500)]