20450475

素因数分解:

$3^4\times 5^2\times {\mathrm{10099}}^1$

素因数の和:10121

約数の個数: 30

約数和(自身を含む): 37885100

約数和(自身を除く): 17434625

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 10099, 30297, 50495, 90891, 151485, 252475, 272673, 454455, 757425, 818019, 1363365, 2272275, 4090095, 6816825, 20450475]

約数ペア:

[(1, 20450475), (3, 6816825), (5, 4090095), (9, 2272275), (15, 1363365), (25, 818019), (27, 757425), (45, 454455), (75, 272673), (81, 252475), (135, 151485), (225, 90891), (405, 50495), (675, 30297), (2025, 10099)]