100805720

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{15461}}^1$

素因数の和:15635

約数の個数: 32

約数和(自身を含む): 228219120

約数和(自身を除く): 127413400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 15461, 30922, 61844, 77305, 123688, 154610, 309220, 618440, 2520143, 5040286, 10080572, 12600715, 20161144, 25201430, 50402860, 100805720]

約数ペア:

[(1, 100805720), (2, 50402860), (4, 25201430), (5, 20161144), (8, 12600715), (10, 10080572), (20, 5040286), (40, 2520143), (163, 618440), (326, 309220), (652, 154610), (815, 123688), (1304, 77305), (1630, 61844), (3260, 30922), (6520, 15461)]