20645750

素因数分解:

$2^1\times 5^3\times {\mathrm{269}}^1\times {\mathrm{307}}^1$

素因数の和:593

約数の個数: 32

約数和(自身を含む): 38918880

約数和(自身を除く): 18273130

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 269, 307, 538, 614, 1345, 1535, 2690, 3070, 6725, 7675, 13450, 15350, 33625, 38375, 67250, 76750, 82583, 165166, 412915, 825830, 2064575, 4129150, 10322875, 20645750]

約数ペア:

[(1, 20645750), (2, 10322875), (5, 4129150), (10, 2064575), (25, 825830), (50, 412915), (125, 165166), (250, 82583), (269, 76750), (307, 67250), (538, 38375), (614, 33625), (1345, 15350), (1535, 13450), (2690, 7675), (3070, 6725)]