18120388

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{401}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 37820160

約数和(自身を除く): 19699772

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 79, 143, 158, 286, 316, 401, 572, 802, 869, 1027, 1604, 1738, 2054, 3476, 4108, 4411, 5213, 8822, 10426, 11297, 17644, 20852, 22594, 31679, 45188, 57343, 63358, 114686, 126716, 229372, 348469, 411827, 696938, 823654, 1393876, 1647308, 4530097, 9060194, 18120388]

約数ペア:

[(1, 18120388), (2, 9060194), (4, 4530097), (11, 1647308), (13, 1393876), (22, 823654), (26, 696938), (44, 411827), (52, 348469), (79, 229372), (143, 126716), (158, 114686), (286, 63358), (316, 57343), (401, 45188), (572, 31679), (802, 22594), (869, 20852), (1027, 17644), (1604, 11297), (1738, 10426), (2054, 8822), (3476, 5213), (4108, 4411)]