283688840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{172981}}^1$

素因数の和:173033

約数の個数: 32

約数和(自身を含む): 653871960

約数和(自身を除く): 370183120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 172981, 345962, 691924, 864905, 1383848, 1729810, 3459620, 6919240, 7092221, 14184442, 28368884, 35461105, 56737768, 70922210, 141844420, 283688840]

約数ペア:

[(1, 283688840), (2, 141844420), (4, 70922210), (5, 56737768), (8, 35461105), (10, 28368884), (20, 14184442), (40, 7092221), (41, 6919240), (82, 3459620), (164, 1729810), (205, 1383848), (328, 864905), (410, 691924), (820, 345962), (1640, 172981)]