311930440

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{147137}}^1$

素因数の和:147201

約数の個数: 32

約数和(自身を含む): 715090680

約数和(自身を除く): 403160240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 147137, 294274, 588548, 735685, 1177096, 1471370, 2942740, 5885480, 7798261, 15596522, 31193044, 38991305, 62386088, 77982610, 155965220, 311930440]

約数ペア:

[(1, 311930440), (2, 155965220), (4, 77982610), (5, 62386088), (8, 38991305), (10, 31193044), (20, 15596522), (40, 7798261), (53, 5885480), (106, 2942740), (212, 1471370), (265, 1177096), (424, 735685), (530, 588548), (1060, 294274), (2120, 147137)]