208547420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{12763}}^1$

素因数の和:12834

約数の個数: 48

約数和(自身を含む): 471757440

約数和(自身を除く): 263210020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 172, 190, 215, 380, 430, 817, 860, 1634, 3268, 4085, 8170, 12763, 16340, 25526, 51052, 63815, 127630, 242497, 255260, 484994, 548809, 969988, 1097618, 1212485, 2195236, 2424970, 2744045, 4849940, 5488090, 10427371, 10976180, 20854742, 41709484, 52136855, 104273710, 208547420]

約数ペア:

[(1, 208547420), (2, 104273710), (4, 52136855), (5, 41709484), (10, 20854742), (19, 10976180), (20, 10427371), (38, 5488090), (43, 4849940), (76, 2744045), (86, 2424970), (95, 2195236), (172, 1212485), (190, 1097618), (215, 969988), (380, 548809), (430, 484994), (817, 255260), (860, 242497), (1634, 127630), (3268, 63815), (4085, 51052), (8170, 25526), (12763, 16340)]