20761250

素因数分解:

$2^1\times 5^4\times {\mathrm{17}}^1\times {\mathrm{977}}^1$

素因数の和:1016

約数の個数: 40

約数和(自身を含む): 41246172

約数和(自身を除く): 20484922

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 125, 170, 250, 425, 625, 850, 977, 1250, 1954, 2125, 4250, 4885, 9770, 10625, 16609, 21250, 24425, 33218, 48850, 83045, 122125, 166090, 244250, 415225, 610625, 830450, 1221250, 2076125, 4152250, 10380625, 20761250]

約数ペア:

[(1, 20761250), (2, 10380625), (5, 4152250), (10, 2076125), (17, 1221250), (25, 830450), (34, 610625), (50, 415225), (85, 244250), (125, 166090), (170, 122125), (250, 83045), (425, 48850), (625, 33218), (850, 24425), (977, 21250), (1250, 16609), (1954, 10625), (2125, 9770), (4250, 4885)]