173696180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{421}}^2$

素因数の和:865

約数の個数: 54

約数和(自身を含む): 425325222

約数和(自身を除く): 251629042

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 421, 490, 842, 980, 1684, 2105, 2947, 4210, 5894, 8420, 11788, 14735, 20629, 29470, 41258, 58940, 82516, 103145, 177241, 206290, 354482, 412580, 708964, 886205, 1240687, 1772410, 2481374, 3544820, 4962748, 6203435, 8684809, 12406870, 17369618, 24813740, 34739236, 43424045, 86848090, 173696180]

約数ペア:

[(1, 173696180), (2, 86848090), (4, 43424045), (5, 34739236), (7, 24813740), (10, 17369618), (14, 12406870), (20, 8684809), (28, 6203435), (35, 4962748), (49, 3544820), (70, 2481374), (98, 1772410), (140, 1240687), (196, 886205), (245, 708964), (421, 412580), (490, 354482), (842, 206290), (980, 177241), (1684, 103145), (2105, 82516), (2947, 58940), (4210, 41258), (5894, 29470), (8420, 20629), (11788, 14735)]