19573970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{521}}^1$

素因数の和:575

約数の個数: 48

約数和(自身を含む): 40384008

約数和(自身を除く): 20810038

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 289, 442, 521, 578, 1042, 1105, 1445, 2210, 2605, 2890, 3757, 5210, 6773, 7514, 8857, 13546, 17714, 18785, 33865, 37570, 44285, 67730, 88570, 115141, 150569, 230282, 301138, 575705, 752845, 1151410, 1505690, 1957397, 3914794, 9786985, 19573970]

約数ペア:

[(1, 19573970), (2, 9786985), (5, 3914794), (10, 1957397), (13, 1505690), (17, 1151410), (26, 752845), (34, 575705), (65, 301138), (85, 230282), (130, 150569), (170, 115141), (221, 88570), (289, 67730), (442, 44285), (521, 37570), (578, 33865), (1042, 18785), (1105, 17714), (1445, 13546), (2210, 8857), (2605, 7514), (2890, 6773), (3757, 5210)]