51657280

素因数分解:

$2^6\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1481}}^1$

素因数の和:1607

約数の個数: 56

約数和(自身を含む): 124221240

約数和(自身を除く): 72563960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 160, 218, 320, 436, 545, 872, 1090, 1481, 1744, 2180, 2962, 3488, 4360, 5924, 6976, 7405, 8720, 11848, 14810, 17440, 23696, 29620, 34880, 47392, 59240, 94784, 118480, 161429, 236960, 322858, 473920, 645716, 807145, 1291432, 1614290, 2582864, 3228580, 5165728, 6457160, 10331456, 12914320, 25828640, 51657280]

約数ペア:

[(1, 51657280), (2, 25828640), (4, 12914320), (5, 10331456), (8, 6457160), (10, 5165728), (16, 3228580), (20, 2582864), (32, 1614290), (40, 1291432), (64, 807145), (80, 645716), (109, 473920), (160, 322858), (218, 236960), (320, 161429), (436, 118480), (545, 94784), (872, 59240), (1090, 47392), (1481, 34880), (1744, 29620), (2180, 23696), (2962, 17440), (3488, 14810), (4360, 11848), (5924, 8720), (6976, 7405)]