28748980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{110573}}^1$

素因数の和:110595

約数の個数: 24

約数和(自身を含む): 65017512

約数和(自身を除く): 36268532

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 110573, 221146, 442292, 552865, 1105730, 1437449, 2211460, 2874898, 5749796, 7187245, 14374490, 28748980]

約数ペア:

[(1, 28748980), (2, 14374490), (4, 7187245), (5, 5749796), (10, 2874898), (13, 2211460), (20, 1437449), (26, 1105730), (52, 552865), (65, 442292), (130, 221146), (260, 110573)]