31327790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{1759}}^1$

素因数の和:1916

約数の個数: 32

約数和(自身を含む): 61205760

約数和(自身を除く): 29877970

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 137, 274, 685, 1370, 1759, 1781, 3518, 3562, 8795, 8905, 17590, 17810, 22867, 45734, 114335, 228670, 240983, 481966, 1204915, 2409830, 3132779, 6265558, 15663895, 31327790]

約数ペア:

[(1, 31327790), (2, 15663895), (5, 6265558), (10, 3132779), (13, 2409830), (26, 1204915), (65, 481966), (130, 240983), (137, 228670), (274, 114335), (685, 45734), (1370, 22867), (1759, 17810), (1781, 17590), (3518, 8905), (3562, 8795)]