142757240

素因数分解:

$2^3\times 5^1\times {\mathrm{881}}^1\times {\mathrm{4051}}^1$

素因数の和:4943

約数の個数: 32

約数和(自身を含む): 321647760

約数和(自身を除く): 178890520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 881, 1762, 3524, 4051, 4405, 7048, 8102, 8810, 16204, 17620, 20255, 32408, 35240, 40510, 81020, 162040, 3568931, 7137862, 14275724, 17844655, 28551448, 35689310, 71378620, 142757240]

約数ペア:

[(1, 142757240), (2, 71378620), (4, 35689310), (5, 28551448), (8, 17844655), (10, 14275724), (20, 7137862), (40, 3568931), (881, 162040), (1762, 81020), (3524, 40510), (4051, 35240), (4405, 32408), (7048, 20255), (8102, 17620), (8810, 16204)]