9702980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{9901}}^1$

素因数の和:9924

約数の個数: 36

約数和(自身を含む): 23705388

約数和(自身を除く): 14002408

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 9901, 19802, 39604, 49505, 69307, 99010, 138614, 198020, 277228, 346535, 485149, 693070, 970298, 1386140, 1940596, 2425745, 4851490, 9702980]

約数ペア:

[(1, 9702980), (2, 4851490), (4, 2425745), (5, 1940596), (7, 1386140), (10, 970298), (14, 693070), (20, 485149), (28, 346535), (35, 277228), (49, 198020), (70, 138614), (98, 99010), (140, 69307), (196, 49505), (245, 39604), (490, 19802), (980, 9901)]