855103640

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{136163}}^1$

素因数の和:136331

約数の個数: 32

約数和(自身を含む): 1936252080

約数和(自身を除く): 1081148440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 136163, 272326, 544652, 680815, 1089304, 1361630, 2723260, 5446520, 21377591, 42755182, 85510364, 106887955, 171020728, 213775910, 427551820, 855103640]

約数ペア:

[(1, 855103640), (2, 427551820), (4, 213775910), (5, 171020728), (8, 106887955), (10, 85510364), (20, 42755182), (40, 21377591), (157, 5446520), (314, 2723260), (628, 1361630), (785, 1089304), (1256, 680815), (1570, 544652), (3140, 272326), (6280, 136163)]