289905400

素因数分解:

$2^3\times 5^2\times {\mathrm{47}}^1\times {\mathrm{30841}}^1$

素因数の和:30904

約数の個数: 48

約数和(自身を含む): 688393440

約数和(自身を除く): 398488040

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 47, 50, 94, 100, 188, 200, 235, 376, 470, 940, 1175, 1880, 2350, 4700, 9400, 30841, 61682, 123364, 154205, 246728, 308410, 616820, 771025, 1233640, 1449527, 1542050, 2899054, 3084100, 5798108, 6168200, 7247635, 11596216, 14495270, 28990540, 36238175, 57981080, 72476350, 144952700, 289905400]

約数ペア:

[(1, 289905400), (2, 144952700), (4, 72476350), (5, 57981080), (8, 36238175), (10, 28990540), (20, 14495270), (25, 11596216), (40, 7247635), (47, 6168200), (50, 5798108), (94, 3084100), (100, 2899054), (188, 1542050), (200, 1449527), (235, 1233640), (376, 771025), (470, 616820), (940, 308410), (1175, 246728), (1880, 154205), (2350, 123364), (4700, 61682), (9400, 30841)]