164021375

素因数分解:

$5^3\times 7^2\times {\mathrm{61}}^1\times {\mathrm{439}}^1$

素因数の和:529

約数の個数: 48

約数和(自身を含む): 242573760

約数和(自身を除く): 78552385

約数列:

[1, 5, 7, 25, 35, 49, 61, 125, 175, 245, 305, 427, 439, 875, 1225, 1525, 2135, 2195, 2989, 3073, 6125, 7625, 10675, 10975, 14945, 15365, 21511, 26779, 53375, 54875, 74725, 76825, 107555, 133895, 187453, 373625, 384125, 537775, 669475, 937265, 1312171, 2688875, 3347375, 4686325, 6560855, 23431625, 32804275, 164021375]

約数ペア:

[(1, 164021375), (5, 32804275), (7, 23431625), (25, 6560855), (35, 4686325), (49, 3347375), (61, 2688875), (125, 1312171), (175, 937265), (245, 669475), (305, 537775), (427, 384125), (439, 373625), (875, 187453), (1225, 133895), (1525, 107555), (2135, 76825), (2195, 74725), (2989, 54875), (3073, 53375), (6125, 26779), (7625, 21511), (10675, 15365), (10975, 14945)]