16507640

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2969}}^1$

素因数の和:3119

約数の個数: 32

約数和(自身を含む): 37422000

約数和(自身を除く): 20914360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 2969, 5560, 5938, 11876, 14845, 23752, 29690, 59380, 118760, 412691, 825382, 1650764, 2063455, 3301528, 4126910, 8253820, 16507640]

約数ペア:

[(1, 16507640), (2, 8253820), (4, 4126910), (5, 3301528), (8, 2063455), (10, 1650764), (20, 825382), (40, 412691), (139, 118760), (278, 59380), (556, 29690), (695, 23752), (1112, 14845), (1390, 11876), (2780, 5938), (2969, 5560)]