161718475

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{2939}}^1$

素因数の和:3051

約数の個数: 24

約数和(自身を含む): 209986560

約数和(自身を除く): 48268085

約数列:

[1, 5, 25, 31, 71, 155, 355, 775, 1775, 2201, 2939, 11005, 14695, 55025, 73475, 91109, 208669, 455545, 1043345, 2277725, 5216725, 6468739, 32343695, 161718475]

約数ペア:

[(1, 161718475), (5, 32343695), (25, 6468739), (31, 5216725), (71, 2277725), (155, 1043345), (355, 455545), (775, 208669), (1775, 91109), (2201, 73475), (2939, 55025), (11005, 14695)]