40278518

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{151423}}^1$

素因数の和:151451

約数の個数: 16

約数和(自身を含む): 72683520

約数和(自身を除く): 32405002

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 151423, 302846, 1059961, 2119922, 2877037, 5754074, 20139259, 40278518]

約数ペア:

[(1, 40278518), (2, 20139259), (7, 5754074), (14, 2877037), (19, 2119922), (38, 1059961), (133, 302846), (266, 151423)]