209225530

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{25609}}^1$

素因数の和:25678

約数の個数: 32

約数和(自身を含む): 405662400

約数和(自身を除く): 196436870

約数列:

[1, 2, 5, 10, 19, 38, 43, 86, 95, 190, 215, 430, 817, 1634, 4085, 8170, 25609, 51218, 128045, 256090, 486571, 973142, 1101187, 2202374, 2432855, 4865710, 5505935, 11011870, 20922553, 41845106, 104612765, 209225530]

約数ペア:

[(1, 209225530), (2, 104612765), (5, 41845106), (10, 20922553), (19, 11011870), (38, 5505935), (43, 4865710), (86, 2432855), (95, 2202374), (190, 1101187), (215, 973142), (430, 486571), (817, 256090), (1634, 128045), (4085, 51218), (8170, 25609)]