12803570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{661}}^1$

素因数の和:830

約数の個数: 32

約数和(自身を含む): 25023600

約数和(自身を除く): 12220030

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 149, 298, 661, 745, 1322, 1490, 1937, 3305, 3874, 6610, 8593, 9685, 17186, 19370, 42965, 85930, 98489, 196978, 492445, 984890, 1280357, 2560714, 6401785, 12803570]

約数ペア:

[(1, 12803570), (2, 6401785), (5, 2560714), (10, 1280357), (13, 984890), (26, 492445), (65, 196978), (130, 98489), (149, 85930), (298, 42965), (661, 19370), (745, 17186), (1322, 9685), (1490, 8593), (1937, 6610), (3305, 3874)]