404420

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{277}}^1$

素因数の和:359

約数の個数: 24

約数和(自身を含む): 864024

約数和(自身を除く): 459604

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 277, 292, 365, 554, 730, 1108, 1385, 1460, 2770, 5540, 20221, 40442, 80884, 101105, 202210, 404420]

約数ペア:

[(1, 404420), (2, 202210), (4, 101105), (5, 80884), (10, 40442), (20, 20221), (73, 5540), (146, 2770), (277, 1460), (292, 1385), (365, 1108), (554, 730)]