81957460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{3121}}^1$

素因数の和:3244

約数の個数: 48

約数和(自身を含む): 187245072

約数和(自身を除く): 105287612

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 101, 130, 202, 260, 404, 505, 1010, 1313, 2020, 2626, 3121, 5252, 6242, 6565, 12484, 13130, 15605, 26260, 31210, 40573, 62420, 81146, 162292, 202865, 315221, 405730, 630442, 811460, 1260884, 1576105, 3152210, 4097873, 6304420, 8195746, 16391492, 20489365, 40978730, 81957460]

約数ペア:

[(1, 81957460), (2, 40978730), (4, 20489365), (5, 16391492), (10, 8195746), (13, 6304420), (20, 4097873), (26, 3152210), (52, 1576105), (65, 1260884), (101, 811460), (130, 630442), (202, 405730), (260, 315221), (404, 202865), (505, 162292), (1010, 81146), (1313, 62420), (2020, 40573), (2626, 31210), (3121, 26260), (5252, 15605), (6242, 13130), (6565, 12484)]