40283978

素因数分解:

$2^1\times 7^4\times {\mathrm{8389}}^1$

素因数の和:8419

約数の個数: 20

約数和(自身を含む): 70501170

約数和(自身を除く): 30217192

約数列:

[1, 2, 7, 14, 49, 98, 343, 686, 2401, 4802, 8389, 16778, 58723, 117446, 411061, 822122, 2877427, 5754854, 20141989, 40283978]

約数ペア:

[(1, 40283978), (2, 20141989), (7, 5754854), (14, 2877427), (49, 822122), (98, 411061), (343, 117446), (686, 58723), (2401, 16778), (4802, 8389)]