21793612880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20955397}}^1$

素因数の和:20955423

約数の個数: 40

約数和(自身を含む): 54567856392

約数和(自身を除く): 32774243512

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 20955397, 41910794, 83821588, 104776985, 167643176, 209553970, 272420161, 335286352, 419107940, 544840322, 838215880, 1089680644, 1362100805, 1676431760, 2179361288, 2724201610, 4358722576, 5448403220, 10896806440, 21793612880]

約数ペア:

[(1, 21793612880), (2, 10896806440), (4, 5448403220), (5, 4358722576), (8, 2724201610), (10, 2179361288), (13, 1676431760), (16, 1362100805), (20, 1089680644), (26, 838215880), (40, 544840322), (52, 419107940), (65, 335286352), (80, 272420161), (104, 209553970), (130, 167643176), (208, 104776985), (260, 83821588), (520, 41910794), (1040, 20955397)]