81178030

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{211}}^1\times {\mathrm{487}}^1$

素因数の和:784

約数の個数: 32

約数和(自身を含む): 148976640

約数和(自身を除く): 67798610

約数列:

[1, 2, 5, 10, 79, 158, 211, 395, 422, 487, 790, 974, 1055, 2110, 2435, 4870, 16669, 33338, 38473, 76946, 83345, 102757, 166690, 192365, 205514, 384730, 513785, 1027570, 8117803, 16235606, 40589015, 81178030]

約数ペア:

[(1, 81178030), (2, 40589015), (5, 16235606), (10, 8117803), (79, 1027570), (158, 513785), (211, 384730), (395, 205514), (422, 192365), (487, 166690), (790, 102757), (974, 83345), (1055, 76946), (2110, 38473), (2435, 33338), (4870, 16669)]