81858660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{104947}}^1$

素因数の和:104972

約数の個数: 48

約数和(自身を含む): 246837696

約数和(自身を除く): 164979036

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 104947, 209894, 314841, 419788, 524735, 629682, 1049470, 1259364, 1364311, 1574205, 2098940, 2728622, 3148410, 4092933, 5457244, 6296820, 6821555, 8185866, 13643110, 16371732, 20464665, 27286220, 40929330, 81858660]

約数ペア:

[(1, 81858660), (2, 40929330), (3, 27286220), (4, 20464665), (5, 16371732), (6, 13643110), (10, 8185866), (12, 6821555), (13, 6296820), (15, 5457244), (20, 4092933), (26, 3148410), (30, 2728622), (39, 2098940), (52, 1574205), (60, 1364311), (65, 1259364), (78, 1049470), (130, 629682), (156, 524735), (195, 419788), (260, 314841), (390, 209894), (780, 104947)]