81844790

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{211}}^1\times {\mathrm{491}}^1$

素因数の和:788

約数の個数: 32

約数和(自身を含む): 150197760

約数和(自身を除く): 68352970

約数列:

[1, 2, 5, 10, 79, 158, 211, 395, 422, 491, 790, 982, 1055, 2110, 2455, 4910, 16669, 33338, 38789, 77578, 83345, 103601, 166690, 193945, 207202, 387890, 518005, 1036010, 8184479, 16368958, 40922395, 81844790]

約数ペア:

[(1, 81844790), (2, 40922395), (5, 16368958), (10, 8184479), (79, 1036010), (158, 518005), (211, 387890), (395, 207202), (422, 193945), (491, 166690), (790, 103601), (982, 83345), (1055, 77578), (2110, 38789), (2455, 33338), (4910, 16669)]