71664040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1213}}^1$

素因数の和:1442

約数の個数: 64

約数和(自身を含む): 185304960

約数和(自身を除く): 113640920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 211, 280, 422, 844, 1055, 1213, 1477, 1688, 2110, 2426, 2954, 4220, 4852, 5908, 6065, 7385, 8440, 8491, 9704, 11816, 12130, 14770, 16982, 24260, 29540, 33964, 42455, 48520, 59080, 67928, 84910, 169820, 255943, 339640, 511886, 1023772, 1279715, 1791601, 2047544, 2559430, 3583202, 5118860, 7166404, 8958005, 10237720, 14332808, 17916010, 35832020, 71664040]

約数ペア:

[(1, 71664040), (2, 35832020), (4, 17916010), (5, 14332808), (7, 10237720), (8, 8958005), (10, 7166404), (14, 5118860), (20, 3583202), (28, 2559430), (35, 2047544), (40, 1791601), (56, 1279715), (70, 1023772), (140, 511886), (211, 339640), (280, 255943), (422, 169820), (844, 84910), (1055, 67928), (1213, 59080), (1477, 48520), (1688, 42455), (2110, 33964), (2426, 29540), (2954, 24260), (4220, 16982), (4852, 14770), (5908, 12130), (6065, 11816), (7385, 9704), (8440, 8491)]