20191675

素因数分解:

$5^2\times 7^2\times {\mathrm{53}}^1\times {\mathrm{311}}^1$

素因数の和:388

約数の個数: 36

約数和(自身を含む): 29770416

約数和(自身を除く): 9578741

約数列:

[1, 5, 7, 25, 35, 49, 53, 175, 245, 265, 311, 371, 1225, 1325, 1555, 1855, 2177, 2597, 7775, 9275, 10885, 12985, 15239, 16483, 54425, 64925, 76195, 82415, 115381, 380975, 412075, 576905, 807667, 2884525, 4038335, 20191675]

約数ペア:

[(1, 20191675), (5, 4038335), (7, 2884525), (25, 807667), (35, 576905), (49, 412075), (53, 380975), (175, 115381), (245, 82415), (265, 76195), (311, 64925), (371, 54425), (1225, 16483), (1325, 15239), (1555, 12985), (1855, 10885), (2177, 9275), (2597, 7775)]