290647588

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{13291}}^1$

素因数の和:13384

約数の個数: 48

約数和(自身を含む): 643120128

約数和(自身を除く): 352472540

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 71, 77, 142, 154, 284, 308, 497, 781, 994, 1562, 1988, 3124, 5467, 10934, 13291, 21868, 26582, 53164, 93037, 146201, 186074, 292402, 372148, 584804, 943661, 1023407, 1887322, 2046814, 3774644, 4093628, 6605627, 10380271, 13211254, 20760542, 26422508, 41521084, 72661897, 145323794, 290647588]

約数ペア:

[(1, 290647588), (2, 145323794), (4, 72661897), (7, 41521084), (11, 26422508), (14, 20760542), (22, 13211254), (28, 10380271), (44, 6605627), (71, 4093628), (77, 3774644), (142, 2046814), (154, 1887322), (284, 1023407), (308, 943661), (497, 584804), (781, 372148), (994, 292402), (1562, 186074), (1988, 146201), (3124, 93037), (5467, 53164), (10934, 26582), (13291, 21868)]