278438570

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{13523}}^1$

素因数の和:13630

約数の個数: 32

約数和(自身を含む): 525813120

約数和(自身を除く): 247374550

約数列:

[1, 2, 5, 10, 29, 58, 71, 142, 145, 290, 355, 710, 2059, 4118, 10295, 13523, 20590, 27046, 67615, 135230, 392167, 784334, 960133, 1920266, 1960835, 3921670, 4800665, 9601330, 27843857, 55687714, 139219285, 278438570]

約数ペア:

[(1, 278438570), (2, 139219285), (5, 55687714), (10, 27843857), (29, 9601330), (58, 4800665), (71, 3921670), (142, 1960835), (145, 1920266), (290, 960133), (355, 784334), (710, 392167), (2059, 135230), (4118, 67615), (10295, 27046), (13523, 20590)]