202010420

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{113489}}^1$

素因数の和:113587

約数の個数: 24

約数和(自身を含む): 428992200

約数和(自身を除く): 226981780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 113489, 226978, 453956, 567445, 1134890, 2269780, 10100521, 20201042, 40402084, 50502605, 101005210, 202010420]

約数ペア:

[(1, 202010420), (2, 101005210), (4, 50502605), (5, 40402084), (10, 20201042), (20, 10100521), (89, 2269780), (178, 1134890), (356, 567445), (445, 453956), (890, 226978), (1780, 113489)]