26601250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{1637}}^1$

素因数の和:1672

約数の個数: 40

約数和(自身を含む): 53729676

約数和(自身を除く): 27128426

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 625, 650, 1250, 1625, 1637, 3250, 3274, 8125, 8185, 16250, 16370, 21281, 40925, 42562, 81850, 106405, 204625, 212810, 409250, 532025, 1023125, 1064050, 2046250, 2660125, 5320250, 13300625, 26601250]

約数ペア:

[(1, 26601250), (2, 13300625), (5, 5320250), (10, 2660125), (13, 2046250), (25, 1064050), (26, 1023125), (50, 532025), (65, 409250), (125, 212810), (130, 204625), (250, 106405), (325, 81850), (625, 42562), (650, 40925), (1250, 21281), (1625, 16370), (1637, 16250), (3250, 8185), (3274, 8125)]