81793865

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{409}}^1$

素因数の和:521

約数の個数: 32

約数和(自身を含む): 107688960

約数和(自身を除く): 25895095

約数列:

[1, 5, 23, 37, 47, 115, 185, 235, 409, 851, 1081, 1739, 2045, 4255, 5405, 8695, 9407, 15133, 19223, 39997, 47035, 75665, 96115, 199985, 348059, 442129, 711251, 1740295, 2210645, 3556255, 16358773, 81793865]

約数ペア:

[(1, 81793865), (5, 16358773), (23, 3556255), (37, 2210645), (47, 1740295), (115, 711251), (185, 442129), (235, 348059), (409, 199985), (851, 96115), (1081, 75665), (1739, 47035), (2045, 39997), (4255, 19223), (5405, 15133), (8695, 9407)]