19750420

素因数分解:

$2^2\times 5^1\times {\mathrm{499}}^1\times {\mathrm{1979}}^1$

素因数の和:2487

約数の個数: 24

約数和(自身を含む): 41580000

約数和(自身を除く): 21829580

約数列:

[1, 2, 4, 5, 10, 20, 499, 998, 1979, 1996, 2495, 3958, 4990, 7916, 9895, 9980, 19790, 39580, 987521, 1975042, 3950084, 4937605, 9875210, 19750420]

約数ペア:

[(1, 19750420), (2, 9875210), (4, 4937605), (5, 3950084), (10, 1975042), (20, 987521), (499, 39580), (998, 19790), (1979, 9980), (1996, 9895), (2495, 7916), (3958, 4990)]