207785405

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 265420800

約数和(自身を除く): 57635395

約数列:

[1, 5, 31, 71, 79, 155, 239, 355, 395, 1195, 2201, 2449, 5609, 7409, 11005, 12245, 16969, 18881, 28045, 37045, 84845, 94405, 173879, 526039, 585311, 869395, 1340551, 2630195, 2926555, 6702755, 41557081, 207785405]

約数ペア:

[(1, 207785405), (5, 41557081), (31, 6702755), (71, 2926555), (79, 2630195), (155, 1340551), (239, 869395), (355, 585311), (395, 526039), (1195, 173879), (2201, 94405), (2449, 84845), (5609, 37045), (7409, 28045), (11005, 18881), (12245, 16969)]