31687575

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{857}}^1$

素因数の和:916

約数の個数: 48

約数和(自身を含む): 57451680

約数和(自身を除く): 25764105

約数列:

[1, 3, 5, 15, 17, 25, 29, 51, 75, 85, 87, 145, 255, 425, 435, 493, 725, 857, 1275, 1479, 2175, 2465, 2571, 4285, 7395, 12325, 12855, 14569, 21425, 24853, 36975, 43707, 64275, 72845, 74559, 124265, 218535, 364225, 372795, 422501, 621325, 1092675, 1267503, 1863975, 2112505, 6337515, 10562525, 31687575]

約数ペア:

[(1, 31687575), (3, 10562525), (5, 6337515), (15, 2112505), (17, 1863975), (25, 1267503), (29, 1092675), (51, 621325), (75, 422501), (85, 372795), (87, 364225), (145, 218535), (255, 124265), (425, 74559), (435, 72845), (493, 64275), (725, 43707), (857, 36975), (1275, 24853), (1479, 21425), (2175, 14569), (2465, 12855), (2571, 12325), (4285, 7395)]