20911960

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{8861}}^1$

素因数の和:8931

約数の個数: 32

約数和(自身を含む): 47854800

約数和(自身を除く): 26942840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 8861, 17722, 35444, 44305, 70888, 88610, 177220, 354440, 522799, 1045598, 2091196, 2613995, 4182392, 5227990, 10455980, 20911960]

約数ペア:

[(1, 20911960), (2, 10455980), (4, 5227990), (5, 4182392), (8, 2613995), (10, 2091196), (20, 1045598), (40, 522799), (59, 354440), (118, 177220), (236, 88610), (295, 70888), (472, 44305), (590, 35444), (1180, 17722), (2360, 8861)]