219903560

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{39551}}^1$

素因数の和:39701

約数の個数: 32

約数和(自身を含む): 498355200

約数和(自身を除く): 278451640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 39551, 79102, 158204, 197755, 316408, 395510, 791020, 1582040, 5497589, 10995178, 21990356, 27487945, 43980712, 54975890, 109951780, 219903560]

約数ペア:

[(1, 219903560), (2, 109951780), (4, 54975890), (5, 43980712), (8, 27487945), (10, 21990356), (20, 10995178), (40, 5497589), (139, 1582040), (278, 791020), (556, 395510), (695, 316408), (1112, 197755), (1390, 158204), (2780, 79102), (5560, 39551)]