80962120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{457}}^1$

素因数の和:614

約数の個数: 64

約数和(自身を含む): 188622720

約数和(自身を除く): 107660600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 103, 172, 206, 215, 344, 412, 430, 457, 515, 824, 860, 914, 1030, 1720, 1828, 2060, 2285, 3656, 4120, 4429, 4570, 8858, 9140, 17716, 18280, 19651, 22145, 35432, 39302, 44290, 47071, 78604, 88580, 94142, 98255, 157208, 177160, 188284, 196510, 235355, 376568, 393020, 470710, 786040, 941420, 1882840, 2024053, 4048106, 8096212, 10120265, 16192424, 20240530, 40481060, 80962120]

約数ペア:

[(1, 80962120), (2, 40481060), (4, 20240530), (5, 16192424), (8, 10120265), (10, 8096212), (20, 4048106), (40, 2024053), (43, 1882840), (86, 941420), (103, 786040), (172, 470710), (206, 393020), (215, 376568), (344, 235355), (412, 196510), (430, 188284), (457, 177160), (515, 157208), (824, 98255), (860, 94142), (914, 88580), (1030, 78604), (1720, 47071), (1828, 44290), (2060, 39302), (2285, 35432), (3656, 22145), (4120, 19651), (4429, 18280), (4570, 17716), (8858, 9140)]