381566120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{5279}}^1$

素因数の和:5442

約数の個数: 64

約数和(自身を含む): 931392000

約数和(自身を除く): 549825880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 139, 260, 278, 520, 556, 695, 1112, 1390, 1807, 2780, 3614, 5279, 5560, 7228, 9035, 10558, 14456, 18070, 21116, 26395, 36140, 42232, 52790, 68627, 72280, 105580, 137254, 211160, 274508, 343135, 549016, 686270, 733781, 1372540, 1467562, 2745080, 2935124, 3668905, 5870248, 7337810, 9539153, 14675620, 19078306, 29351240, 38156612, 47695765, 76313224, 95391530, 190783060, 381566120]

約数ペア:

[(1, 381566120), (2, 190783060), (4, 95391530), (5, 76313224), (8, 47695765), (10, 38156612), (13, 29351240), (20, 19078306), (26, 14675620), (40, 9539153), (52, 7337810), (65, 5870248), (104, 3668905), (130, 2935124), (139, 2745080), (260, 1467562), (278, 1372540), (520, 733781), (556, 686270), (695, 549016), (1112, 343135), (1390, 274508), (1807, 211160), (2780, 137254), (3614, 105580), (5279, 72280), (5560, 68627), (7228, 52790), (9035, 42232), (10558, 36140), (14456, 26395), (18070, 21116)]