1299668840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{792481}}^1$

素因数の和:792533

約数の個数: 32

約数和(自身を含む): 2995581960

約数和(自身を除く): 1695913120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 792481, 1584962, 3169924, 3962405, 6339848, 7924810, 15849620, 31699240, 32491721, 64983442, 129966884, 162458605, 259933768, 324917210, 649834420, 1299668840]

約数ペア:

[(1, 1299668840), (2, 649834420), (4, 324917210), (5, 259933768), (8, 162458605), (10, 129966884), (20, 64983442), (40, 32491721), (41, 31699240), (82, 15849620), (164, 7924810), (205, 6339848), (328, 3962405), (410, 3169924), (820, 1584962), (1640, 792481)]