51985700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{39989}}^1$

素因数の和:40016

約数の個数: 36

約数和(自身を含む): 121489620

約数和(自身を除く): 69503920

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 39989, 79978, 159956, 199945, 399890, 519857, 799780, 999725, 1039714, 1999450, 2079428, 2599285, 3998900, 5198570, 10397140, 12996425, 25992850, 51985700]

約数ペア:

[(1, 51985700), (2, 25992850), (4, 12996425), (5, 10397140), (10, 5198570), (13, 3998900), (20, 2599285), (25, 2079428), (26, 1999450), (50, 1039714), (52, 999725), (65, 799780), (100, 519857), (130, 399890), (260, 199945), (325, 159956), (650, 79978), (1300, 39989)]