81209080

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^2\times {\mathrm{1483}}^1$

素因数の和:1568

約数の個数: 48

約数和(自身を含む): 187918920

約数和(自身を除く): 106709840

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1369, 1480, 1483, 2738, 2966, 5476, 5932, 6845, 7415, 10952, 11864, 13690, 14830, 27380, 29660, 54760, 54871, 59320, 109742, 219484, 274355, 438968, 548710, 1097420, 2030227, 2194840, 4060454, 8120908, 10151135, 16241816, 20302270, 40604540, 81209080]

約数ペア:

[(1, 81209080), (2, 40604540), (4, 20302270), (5, 16241816), (8, 10151135), (10, 8120908), (20, 4060454), (37, 2194840), (40, 2030227), (74, 1097420), (148, 548710), (185, 438968), (296, 274355), (370, 219484), (740, 109742), (1369, 59320), (1480, 54871), (1483, 54760), (2738, 29660), (2966, 27380), (5476, 14830), (5932, 13690), (6845, 11864), (7415, 10952)]