123120218

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{563}}^1\times {\mathrm{647}}^1$

素因数の和:1238

約数の個数: 24

約数和(自身を含む): 200644128

約数和(自身を除く): 77523910

約数列:

[1, 2, 13, 26, 169, 338, 563, 647, 1126, 1294, 7319, 8411, 14638, 16822, 95147, 109343, 190294, 218686, 364261, 728522, 4735393, 9470786, 61560109, 123120218]

約数ペア:

[(1, 123120218), (2, 61560109), (13, 9470786), (26, 4735393), (169, 728522), (338, 364261), (563, 218686), (647, 190294), (1126, 109343), (1294, 95147), (7319, 16822), (8411, 14638)]