131756780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{3919}}^1$

素因数の和:4010

約数の個数: 36

約数和(自身を含む): 283674720

約数和(自身を除く): 151917940

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 1681, 3362, 3919, 6724, 7838, 8405, 15676, 16810, 19595, 33620, 39190, 78380, 160679, 321358, 642716, 803395, 1606790, 3213580, 6587839, 13175678, 26351356, 32939195, 65878390, 131756780]

約数ペア:

[(1, 131756780), (2, 65878390), (4, 32939195), (5, 26351356), (10, 13175678), (20, 6587839), (41, 3213580), (82, 1606790), (164, 803395), (205, 642716), (410, 321358), (820, 160679), (1681, 78380), (3362, 39190), (3919, 33620), (6724, 19595), (7838, 16810), (8405, 15676)]