20456505

素因数分解:

$3^2\times 5^1\times {\mathrm{499}}^1\times {\mathrm{911}}^1$

素因数の和:1421

約数の個数: 24

約数和(自身を含む): 35568000

約数和(自身を除く): 15111495

約数列:

[1, 3, 5, 9, 15, 45, 499, 911, 1497, 2495, 2733, 4491, 4555, 7485, 8199, 13665, 22455, 40995, 454589, 1363767, 2272945, 4091301, 6818835, 20456505]

約数ペア:

[(1, 20456505), (3, 6818835), (5, 4091301), (9, 2272945), (15, 1363767), (45, 454589), (499, 40995), (911, 22455), (1497, 13665), (2495, 8199), (2733, 7485), (4491, 4555)]