970581220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{990389}}^1$

素因数の和:990412

約数の個数: 36

約数和(自身を含む): 2370993660

約数和(自身を除く): 1400412440

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 990389, 1980778, 3961556, 4951945, 6932723, 9903890, 13865446, 19807780, 27730892, 34663615, 48529061, 69327230, 97058122, 138654460, 194116244, 242645305, 485290610, 970581220]

約数ペア:

[(1, 970581220), (2, 485290610), (4, 242645305), (5, 194116244), (7, 138654460), (10, 97058122), (14, 69327230), (20, 48529061), (28, 34663615), (35, 27730892), (49, 19807780), (70, 13865446), (98, 9903890), (140, 6932723), (196, 4951945), (245, 3961556), (490, 1980778), (980, 990389)]