20778808

素因数分解:

$2^3\times {\mathrm{103}}^1\times {\mathrm{151}}^1\times {\mathrm{167}}^1$

素因数の和:427

約数の個数: 32

約数和(自身を含む): 39836160

約数和(自身を除く): 19057352

約数列:

[1, 2, 4, 8, 103, 151, 167, 206, 302, 334, 412, 604, 668, 824, 1208, 1336, 15553, 17201, 25217, 31106, 34402, 50434, 62212, 68804, 100868, 124424, 137608, 201736, 2597351, 5194702, 10389404, 20778808]

約数ペア:

[(1, 20778808), (2, 10389404), (4, 5194702), (8, 2597351), (103, 201736), (151, 137608), (167, 124424), (206, 100868), (302, 68804), (334, 62212), (412, 50434), (604, 34402), (668, 31106), (824, 25217), (1208, 17201), (1336, 15553)]