208482920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{2287}}^1$

素因数の和:2394

約数の個数: 64

約数和(自身を含む): 489265920

約数和(自身を除く): 280783000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 53, 86, 106, 172, 212, 215, 265, 344, 424, 430, 530, 860, 1060, 1720, 2120, 2279, 2287, 4558, 4574, 9116, 9148, 11395, 11435, 18232, 18296, 22790, 22870, 45580, 45740, 91160, 91480, 98341, 121211, 196682, 242422, 393364, 484844, 491705, 606055, 786728, 969688, 983410, 1212110, 1966820, 2424220, 3933640, 4848440, 5212073, 10424146, 20848292, 26060365, 41696584, 52120730, 104241460, 208482920]

約数ペア:

[(1, 208482920), (2, 104241460), (4, 52120730), (5, 41696584), (8, 26060365), (10, 20848292), (20, 10424146), (40, 5212073), (43, 4848440), (53, 3933640), (86, 2424220), (106, 1966820), (172, 1212110), (212, 983410), (215, 969688), (265, 786728), (344, 606055), (424, 491705), (430, 484844), (530, 393364), (860, 242422), (1060, 196682), (1720, 121211), (2120, 98341), (2279, 91480), (2287, 91160), (4558, 45740), (4574, 45580), (9116, 22870), (9148, 22790), (11395, 18296), (11435, 18232)]