20649550

素因数分解:

$2^1\times 5^2\times {\mathrm{167}}^1\times {\mathrm{2473}}^1$

素因数の和:2652

約数の個数: 24

約数和(自身を含む): 38653776

約数和(自身を除く): 18004226

約数列:

[1, 2, 5, 10, 25, 50, 167, 334, 835, 1670, 2473, 4175, 4946, 8350, 12365, 24730, 61825, 123650, 412991, 825982, 2064955, 4129910, 10324775, 20649550]

約数ペア:

[(1, 20649550), (2, 10324775), (5, 4129910), (10, 2064955), (25, 825982), (50, 412991), (167, 123650), (334, 61825), (835, 24730), (1670, 12365), (2473, 8350), (4175, 4946)]