15218890

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^2\times {\mathrm{409}}^1$

素因数の和:538

約数の個数: 24

約数和(自身を含む): 27918540

約数和(自身を除く): 12699650

約数列:

[1, 2, 5, 10, 61, 122, 305, 409, 610, 818, 2045, 3721, 4090, 7442, 18605, 24949, 37210, 49898, 124745, 249490, 1521889, 3043778, 7609445, 15218890]

約数ペア:

[(1, 15218890), (2, 7609445), (5, 3043778), (10, 1521889), (61, 249490), (122, 124745), (305, 49898), (409, 37210), (610, 24949), (818, 18605), (2045, 7442), (3721, 4090)]