290440

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:201

約数の個数: 32

約数和(自身を含む): 670680

約数和(自身を除く): 380240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 137, 212, 265, 274, 424, 530, 548, 685, 1060, 1096, 1370, 2120, 2740, 5480, 7261, 14522, 29044, 36305, 58088, 72610, 145220, 290440]

約数ペア:

[(1, 290440), (2, 145220), (4, 72610), (5, 58088), (8, 36305), (10, 29044), (20, 14522), (40, 7261), (53, 5480), (106, 2740), (137, 2120), (212, 1370), (265, 1096), (274, 1060), (424, 685), (530, 548)]