20357744

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{1123}}^1$

素因数の和:1245

約数の個数: 40

約数和(自身を含む): 43485312

約数和(自身を除く): 23127568

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 103, 176, 206, 412, 824, 1123, 1133, 1648, 2246, 2266, 4492, 4532, 8984, 9064, 12353, 17968, 18128, 24706, 49412, 98824, 115669, 197648, 231338, 462676, 925352, 1272359, 1850704, 2544718, 5089436, 10178872, 20357744]

約数ペア:

[(1, 20357744), (2, 10178872), (4, 5089436), (8, 2544718), (11, 1850704), (16, 1272359), (22, 925352), (44, 462676), (88, 231338), (103, 197648), (176, 115669), (206, 98824), (412, 49412), (824, 24706), (1123, 18128), (1133, 17968), (1648, 12353), (2246, 9064), (2266, 8984), (4492, 4532)]