208029700

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{479}}^1$

素因数の和:637

約数の個数: 72

約数和(自身を含む): 467470080

約数和(自身を除く): 259440380

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 101, 172, 202, 215, 404, 430, 479, 505, 860, 958, 1010, 1075, 1916, 2020, 2150, 2395, 2525, 4300, 4343, 4790, 5050, 8686, 9580, 10100, 11975, 17372, 20597, 21715, 23950, 41194, 43430, 47900, 48379, 82388, 86860, 96758, 102985, 108575, 193516, 205970, 217150, 241895, 411940, 434300, 483790, 514925, 967580, 1029850, 1209475, 2059700, 2080297, 2418950, 4160594, 4837900, 8321188, 10401485, 20802970, 41605940, 52007425, 104014850, 208029700]

約数ペア:

[(1, 208029700), (2, 104014850), (4, 52007425), (5, 41605940), (10, 20802970), (20, 10401485), (25, 8321188), (43, 4837900), (50, 4160594), (86, 2418950), (100, 2080297), (101, 2059700), (172, 1209475), (202, 1029850), (215, 967580), (404, 514925), (430, 483790), (479, 434300), (505, 411940), (860, 241895), (958, 217150), (1010, 205970), (1075, 193516), (1916, 108575), (2020, 102985), (2150, 96758), (2395, 86860), (2525, 82388), (4300, 48379), (4343, 47900), (4790, 43430), (5050, 41194), (8686, 23950), (9580, 21715), (10100, 20597), (11975, 17372)]