21602480

素因数分解:

$2^4\times 5^1\times {\mathrm{270031}}^1$

素因数の和:270044

約数の個数: 20

約数和(自身を含む): 50225952

約数和(自身を除く): 28623472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 270031, 540062, 1080124, 1350155, 2160248, 2700310, 4320496, 5400620, 10801240, 21602480]

約数ペア:

[(1, 21602480), (2, 10801240), (4, 5400620), (5, 4320496), (8, 2700310), (10, 2160248), (16, 1350155), (20, 1080124), (40, 540062), (80, 270031)]