20256345

素因数分解:

$3^3\times 5^1\times {\mathrm{227}}^1\times {\mathrm{661}}^1$

素因数の和:902

約数の個数: 32

約数和(自身を含む): 36224640

約数和(自身を除く): 15968295

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 227, 661, 681, 1135, 1983, 2043, 3305, 3405, 5949, 6129, 9915, 10215, 17847, 29745, 30645, 89235, 150047, 450141, 750235, 1350423, 2250705, 4051269, 6752115, 20256345]

約数ペア:

[(1, 20256345), (3, 6752115), (5, 4051269), (9, 2250705), (15, 1350423), (27, 750235), (45, 450141), (135, 150047), (227, 89235), (661, 30645), (681, 29745), (1135, 17847), (1983, 10215), (2043, 9915), (3305, 6129), (3405, 5949)]