20580250

素因数分解:

$2^1\times 5^3\times {\mathrm{191}}^1\times {\mathrm{431}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 38817792

約数和(自身を除く): 18237542

約数列:

[1, 2, 5, 10, 25, 50, 125, 191, 250, 382, 431, 862, 955, 1910, 2155, 4310, 4775, 9550, 10775, 21550, 23875, 47750, 53875, 82321, 107750, 164642, 411605, 823210, 2058025, 4116050, 10290125, 20580250]

約数ペア:

[(1, 20580250), (2, 10290125), (5, 4116050), (10, 2058025), (25, 823210), (50, 411605), (125, 164642), (191, 107750), (250, 82321), (382, 53875), (431, 47750), (862, 23875), (955, 21550), (1910, 10775), (2155, 9550), (4310, 4775)]