20565225

素因数分解:

$3^3\times 5^2\times {\mathrm{30467}}^1$

素因数の和:30486

約数の個数: 24

約数和(自身を含む): 37780320

約数和(自身を除く): 17215095

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 30467, 91401, 152335, 274203, 457005, 761675, 822609, 1371015, 2285025, 4113045, 6855075, 20565225]

約数ペア:

[(1, 20565225), (3, 6855075), (5, 4113045), (9, 2285025), (15, 1371015), (25, 822609), (27, 761675), (45, 457005), (75, 274203), (135, 152335), (225, 91401), (675, 30467)]