20305870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8221}}^1$

素因数の和:8260

約数の個数: 32

約数和(自身を含む): 41438880

約数和(自身を除く): 21133010

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 8221, 16442, 41105, 82210, 106873, 156199, 213746, 312398, 534365, 780995, 1068730, 1561990, 2030587, 4061174, 10152935, 20305870]

約数ペア:

[(1, 20305870), (2, 10152935), (5, 4061174), (10, 2030587), (13, 1561990), (19, 1068730), (26, 780995), (38, 534365), (65, 312398), (95, 213746), (130, 156199), (190, 106873), (247, 82210), (494, 41105), (1235, 16442), (2470, 8221)]