20158476485

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{395303}}^1$

素因数の和:395393

約数の個数: 32

約数和(自身を含む): 29144973312

約数和(自身を除く): 8986496827

約数列:

[1, 5, 7, 31, 35, 47, 155, 217, 235, 329, 1085, 1457, 1645, 7285, 10199, 50995, 395303, 1976515, 2767121, 12254393, 13835605, 18579241, 61271965, 85780751, 92896205, 130054687, 428903755, 575956471, 650273435, 2879782355, 4031695297, 20158476485]

約数ペア:

[(1, 20158476485), (5, 4031695297), (7, 2879782355), (31, 650273435), (35, 575956471), (47, 428903755), (155, 130054687), (217, 92896205), (235, 85780751), (329, 61271965), (1085, 18579241), (1457, 13835605), (1645, 12254393), (7285, 2767121), (10199, 1976515), (50995, 395303)]