28891330

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{769}}^1$

素因数の和:823

約数の個数: 48

約数和(自身を含む): 59570280

約数和(自身を除く): 30678950

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 289, 442, 578, 769, 1105, 1445, 1538, 2210, 2890, 3757, 3845, 7514, 7690, 9997, 13073, 18785, 19994, 26146, 37570, 49985, 65365, 99970, 130730, 169949, 222241, 339898, 444482, 849745, 1111205, 1699490, 2222410, 2889133, 5778266, 14445665, 28891330]

約数ペア:

[(1, 28891330), (2, 14445665), (5, 5778266), (10, 2889133), (13, 2222410), (17, 1699490), (26, 1111205), (34, 849745), (65, 444482), (85, 339898), (130, 222241), (170, 169949), (221, 130730), (289, 99970), (442, 65365), (578, 49985), (769, 37570), (1105, 26146), (1445, 19994), (1538, 18785), (2210, 13073), (2890, 9997), (3757, 7690), (3845, 7514)]