40339628

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{21503}}^1$

素因数の和:21581

約数の個数: 24

約数和(自身を含む): 81887232

約数和(自身を除く): 41547604

約数列:

[1, 2, 4, 7, 14, 28, 67, 134, 268, 469, 938, 1876, 21503, 43006, 86012, 150521, 301042, 602084, 1440701, 2881402, 5762804, 10084907, 20169814, 40339628]

約数ペア:

[(1, 40339628), (2, 20169814), (4, 10084907), (7, 5762804), (14, 2881402), (28, 1440701), (67, 602084), (134, 301042), (268, 150521), (469, 86012), (938, 43006), (1876, 21503)]