81547570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{661}}^1$

素因数の和:767

約数の個数: 48

約数和(自身を含む): 161366472

約数和(自身を除く): 79818902

約数列:

[1, 2, 5, 10, 13, 26, 65, 73, 130, 146, 169, 338, 365, 661, 730, 845, 949, 1322, 1690, 1898, 3305, 4745, 6610, 8593, 9490, 12337, 17186, 24674, 42965, 48253, 61685, 85930, 96506, 111709, 123370, 223418, 241265, 482530, 558545, 627289, 1117090, 1254578, 3136445, 6272890, 8154757, 16309514, 40773785, 81547570]

約数ペア:

[(1, 81547570), (2, 40773785), (5, 16309514), (10, 8154757), (13, 6272890), (26, 3136445), (65, 1254578), (73, 1117090), (130, 627289), (146, 558545), (169, 482530), (338, 241265), (365, 223418), (661, 123370), (730, 111709), (845, 96506), (949, 85930), (1322, 61685), (1690, 48253), (1898, 42965), (3305, 24674), (4745, 17186), (6610, 12337), (8593, 9490)]