278316440

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{28871}}^1$

素因数の和:29123

約数の個数: 32

約数和(自身を含む): 628832160

約数和(自身を除く): 350515720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1928, 2410, 4820, 9640, 28871, 57742, 115484, 144355, 230968, 288710, 577420, 1154840, 6957911, 13915822, 27831644, 34789555, 55663288, 69579110, 139158220, 278316440]

約数ペア:

[(1, 278316440), (2, 139158220), (4, 69579110), (5, 55663288), (8, 34789555), (10, 27831644), (20, 13915822), (40, 6957911), (241, 1154840), (482, 577420), (964, 288710), (1205, 230968), (1928, 144355), (2410, 115484), (4820, 57742), (9640, 28871)]