378980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2707}}^1$

素因数の和:2723

約数の個数: 24

約数和(自身を含む): 909888

約数和(自身を除く): 530908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2707, 5414, 10828, 13535, 18949, 27070, 37898, 54140, 75796, 94745, 189490, 378980]

約数ペア:

[(1, 378980), (2, 189490), (4, 94745), (5, 75796), (7, 54140), (10, 37898), (14, 27070), (20, 18949), (28, 13535), (35, 10828), (70, 5414), (140, 2707)]