201805580

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{277}}^1\times {\mathrm{499}}^1$

素因数の和:858

約数の個数: 48

約数和(自身を含む): 432012000

約数和(自身を除く): 230206420

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 277, 292, 365, 499, 554, 730, 998, 1108, 1385, 1460, 1996, 2495, 2770, 4990, 5540, 9980, 20221, 36427, 40442, 72854, 80884, 101105, 138223, 145708, 182135, 202210, 276446, 364270, 404420, 552892, 691115, 728540, 1382230, 2764460, 10090279, 20180558, 40361116, 50451395, 100902790, 201805580]

約数ペア:

[(1, 201805580), (2, 100902790), (4, 50451395), (5, 40361116), (10, 20180558), (20, 10090279), (73, 2764460), (146, 1382230), (277, 728540), (292, 691115), (365, 552892), (499, 404420), (554, 364270), (730, 276446), (998, 202210), (1108, 182135), (1385, 145708), (1460, 138223), (1996, 101105), (2495, 80884), (2770, 72854), (4990, 40442), (5540, 36427), (9980, 20221)]