18648890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{859}}^1$

素因数の和:1046

約数の個数: 32

約数和(自身を含む): 36408960

約数和(自身を除く): 17760070

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 167, 334, 835, 859, 1670, 1718, 2171, 4295, 4342, 8590, 10855, 11167, 21710, 22334, 55835, 111670, 143453, 286906, 717265, 1434530, 1864889, 3729778, 9324445, 18648890]

約数ペア:

[(1, 18648890), (2, 9324445), (5, 3729778), (10, 1864889), (13, 1434530), (26, 717265), (65, 286906), (130, 143453), (167, 111670), (334, 55835), (835, 22334), (859, 21710), (1670, 11167), (1718, 10855), (2171, 8590), (4295, 4342)]