7880278

素因数分解:

$2^1\times 7^2\times {\mathrm{191}}^1\times {\mathrm{421}}^1$

素因数の和:628

約数の個数: 24

約数和(自身を含む): 13855104

約数和(自身を除く): 5974826

約数列:

[1, 2, 7, 14, 49, 98, 191, 382, 421, 842, 1337, 2674, 2947, 5894, 9359, 18718, 20629, 41258, 80411, 160822, 562877, 1125754, 3940139, 7880278]

約数ペア:

[(1, 7880278), (2, 3940139), (7, 1125754), (14, 562877), (49, 160822), (98, 80411), (191, 41258), (382, 20629), (421, 18718), (842, 9359), (1337, 5894), (2674, 2947)]