28377680

素因数分解:

$2^4\times 5^1\times {\mathrm{229}}^1\times {\mathrm{1549}}^1$

素因数の和:1791

約数の個数: 40

約数和(自身を含む): 66309000

約数和(自身を除く): 37931320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 229, 458, 916, 1145, 1549, 1832, 2290, 3098, 3664, 4580, 6196, 7745, 9160, 12392, 15490, 18320, 24784, 30980, 61960, 123920, 354721, 709442, 1418884, 1773605, 2837768, 3547210, 5675536, 7094420, 14188840, 28377680]

約数ペア:

[(1, 28377680), (2, 14188840), (4, 7094420), (5, 5675536), (8, 3547210), (10, 2837768), (16, 1773605), (20, 1418884), (40, 709442), (80, 354721), (229, 123920), (458, 61960), (916, 30980), (1145, 24784), (1549, 18320), (1832, 15490), (2290, 12392), (3098, 9160), (3664, 7745), (4580, 6196)]