8408840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{659}}^1$

素因数の和:710

約数の個数: 64

約数和(自身を含む): 21384000

約数和(自身を除く): 12975160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 55, 58, 88, 110, 116, 145, 220, 232, 290, 319, 440, 580, 638, 659, 1160, 1276, 1318, 1595, 2552, 2636, 3190, 3295, 5272, 6380, 6590, 7249, 12760, 13180, 14498, 19111, 26360, 28996, 36245, 38222, 57992, 72490, 76444, 95555, 144980, 152888, 191110, 210221, 289960, 382220, 420442, 764440, 840884, 1051105, 1681768, 2102210, 4204420, 8408840]

約数ペア:

[(1, 8408840), (2, 4204420), (4, 2102210), (5, 1681768), (8, 1051105), (10, 840884), (11, 764440), (20, 420442), (22, 382220), (29, 289960), (40, 210221), (44, 191110), (55, 152888), (58, 144980), (88, 95555), (110, 76444), (116, 72490), (145, 57992), (220, 38222), (232, 36245), (290, 28996), (319, 26360), (440, 19111), (580, 14498), (638, 13180), (659, 12760), (1160, 7249), (1276, 6590), (1318, 6380), (1595, 5272), (2552, 3295), (2636, 3190)]