25528750

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{1571}}^1$

素因数の和:1606

約数の個数: 40

約数和(自身を含む): 51564744

約数和(自身を除く): 26035994

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 625, 650, 1250, 1571, 1625, 3142, 3250, 7855, 8125, 15710, 16250, 20423, 39275, 40846, 78550, 102115, 196375, 204230, 392750, 510575, 981875, 1021150, 1963750, 2552875, 5105750, 12764375, 25528750]

約数ペア:

[(1, 25528750), (2, 12764375), (5, 5105750), (10, 2552875), (13, 1963750), (25, 1021150), (26, 981875), (50, 510575), (65, 392750), (125, 204230), (130, 196375), (250, 102115), (325, 78550), (625, 40846), (650, 39275), (1250, 20423), (1571, 16250), (1625, 15710), (3142, 8125), (3250, 7855)]