71648980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{275573}}^1$

素因数の和:275595

約数の個数: 24

約数和(自身を含む): 162037512

約数和(自身を除く): 90388532

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 275573, 551146, 1102292, 1377865, 2755730, 3582449, 5511460, 7164898, 14329796, 17912245, 35824490, 71648980]

約数ペア:

[(1, 71648980), (2, 35824490), (4, 17912245), (5, 14329796), (10, 7164898), (13, 5511460), (20, 3582449), (26, 2755730), (52, 1377865), (65, 1102292), (130, 551146), (260, 275573)]