78811360

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4519}}^1$

素因数の和:4643

約数の個数: 48

約数和(自身を含む): 187941600

約数和(自身を除く): 109130240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 436, 545, 872, 1090, 1744, 2180, 3488, 4360, 4519, 8720, 9038, 17440, 18076, 22595, 36152, 45190, 72304, 90380, 144608, 180760, 361520, 492571, 723040, 985142, 1970284, 2462855, 3940568, 4925710, 7881136, 9851420, 15762272, 19702840, 39405680, 78811360]

約数ペア:

[(1, 78811360), (2, 39405680), (4, 19702840), (5, 15762272), (8, 9851420), (10, 7881136), (16, 4925710), (20, 3940568), (32, 2462855), (40, 1970284), (80, 985142), (109, 723040), (160, 492571), (218, 361520), (436, 180760), (545, 144608), (872, 90380), (1090, 72304), (1744, 45190), (2180, 36152), (3488, 22595), (4360, 18076), (4519, 17440), (8720, 9038)]