208088245

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{653}}^1$

素因数の和:861

約数の個数: 32

約数和(自身を含む): 278007552

約数和(自身を除く): 69919307

約数列:

[1, 5, 17, 23, 85, 115, 163, 391, 653, 815, 1955, 2771, 3265, 3749, 11101, 13855, 15019, 18745, 55505, 63733, 75095, 106439, 255323, 318665, 532195, 1276615, 1809463, 2448097, 9047315, 12240485, 41617649, 208088245]

約数ペア:

[(1, 208088245), (5, 41617649), (17, 12240485), (23, 9047315), (85, 2448097), (115, 1809463), (163, 1276615), (391, 532195), (653, 318665), (815, 255323), (1955, 106439), (2771, 75095), (3265, 63733), (3749, 55505), (11101, 18745), (13855, 15019)]