19227020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{283}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 41986560

約数和(自身を除く): 22759540

約数列:

[1, 2, 4, 5, 10, 20, 43, 79, 86, 158, 172, 215, 283, 316, 395, 430, 566, 790, 860, 1132, 1415, 1580, 2830, 3397, 5660, 6794, 12169, 13588, 16985, 22357, 24338, 33970, 44714, 48676, 60845, 67940, 89428, 111785, 121690, 223570, 243380, 447140, 961351, 1922702, 3845404, 4806755, 9613510, 19227020]

約数ペア:

[(1, 19227020), (2, 9613510), (4, 4806755), (5, 3845404), (10, 1922702), (20, 961351), (43, 447140), (79, 243380), (86, 223570), (158, 121690), (172, 111785), (215, 89428), (283, 67940), (316, 60845), (395, 48676), (430, 44714), (566, 33970), (790, 24338), (860, 22357), (1132, 16985), (1415, 13588), (1580, 12169), (2830, 6794), (3397, 5660)]