247832020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{203141}}^1$

素因数の和:203211

約数の個数: 24

約数和(自身を含む): 528981768

約数和(自身を除く): 281149748

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 203141, 406282, 812564, 1015705, 2031410, 4062820, 12391601, 24783202, 49566404, 61958005, 123916010, 247832020]

約数ペア:

[(1, 247832020), (2, 123916010), (4, 61958005), (5, 49566404), (10, 24783202), (20, 12391601), (61, 4062820), (122, 2031410), (244, 1015705), (305, 812564), (610, 406282), (1220, 203141)]