82761640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{159157}}^1$

素因数の和:159181

約数の個数: 32

約数和(自身を含む): 200539080

約数和(自身を除く): 117777440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 159157, 318314, 636628, 795785, 1273256, 1591570, 2069041, 3183140, 4138082, 6366280, 8276164, 10345205, 16552328, 20690410, 41380820, 82761640]

約数ペア:

[(1, 82761640), (2, 41380820), (4, 20690410), (5, 16552328), (8, 10345205), (10, 8276164), (13, 6366280), (20, 4138082), (26, 3183140), (40, 2069041), (52, 1591570), (65, 1273256), (104, 795785), (130, 636628), (260, 318314), (520, 159157)]