15615020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{271}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 34180608

約数和(自身を除く): 18565588

約数列:

[1, 2, 4, 5, 10, 20, 43, 67, 86, 134, 172, 215, 268, 271, 335, 430, 542, 670, 860, 1084, 1340, 1355, 2710, 2881, 5420, 5762, 11524, 11653, 14405, 18157, 23306, 28810, 36314, 46612, 57620, 58265, 72628, 90785, 116530, 181570, 233060, 363140, 780751, 1561502, 3123004, 3903755, 7807510, 15615020]

約数ペア:

[(1, 15615020), (2, 7807510), (4, 3903755), (5, 3123004), (10, 1561502), (20, 780751), (43, 363140), (67, 233060), (86, 181570), (134, 116530), (172, 90785), (215, 72628), (268, 58265), (271, 57620), (335, 46612), (430, 36314), (542, 28810), (670, 23306), (860, 18157), (1084, 14405), (1340, 11653), (1355, 11524), (2710, 5762), (2881, 5420)]