390409516

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{228577}}^1$

素因数の和:228649

約数の個数: 24

約数和(自身を含む): 793622816

約数和(自身を除く): 403213300

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 228577, 457154, 914308, 1600039, 3200078, 6400156, 13943197, 27886394, 55772788, 97602379, 195204758, 390409516]

約数ペア:

[(1, 390409516), (2, 195204758), (4, 97602379), (7, 55772788), (14, 27886394), (28, 13943197), (61, 6400156), (122, 3200078), (244, 1600039), (427, 914308), (854, 457154), (1708, 228577)]