81837418

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{431}}^1$

素因数の和:622

約数の個数: 32

約数和(自身を含む): 135717120

約数和(自身を除く): 53879702

約数列:

[1, 2, 13, 26, 67, 109, 134, 218, 431, 862, 871, 1417, 1742, 2834, 5603, 7303, 11206, 14606, 28877, 46979, 57754, 93958, 94939, 189878, 375401, 610727, 750802, 1221454, 3147593, 6295186, 40918709, 81837418]

約数ペア:

[(1, 81837418), (2, 40918709), (13, 6295186), (26, 3147593), (67, 1221454), (109, 750802), (134, 610727), (218, 375401), (431, 189878), (862, 94939), (871, 93958), (1417, 57754), (1742, 46979), (2834, 28877), (5603, 14606), (7303, 11206)]