81420170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{2437}}^1$

素因数の和:2714

約数の個数: 32

約数和(自身を含む): 158509008

約数和(自身を除く): 77088838

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 257, 514, 1285, 2437, 2570, 3341, 4874, 6682, 12185, 16705, 24370, 31681, 33410, 63362, 158405, 316810, 626309, 1252618, 3131545, 6263090, 8142017, 16284034, 40710085, 81420170]

約数ペア:

[(1, 81420170), (2, 40710085), (5, 16284034), (10, 8142017), (13, 6263090), (26, 3131545), (65, 1252618), (130, 626309), (257, 316810), (514, 158405), (1285, 63362), (2437, 33410), (2570, 31681), (3341, 24370), (4874, 16705), (6682, 12185)]