4000165

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:157

約数の個数: 32

約数和(自身を含む): 5644800

約数和(自身を除く): 1644635

約数列:

[1, 5, 13, 19, 41, 65, 79, 95, 205, 247, 395, 533, 779, 1027, 1235, 1501, 2665, 3239, 3895, 5135, 7505, 10127, 16195, 19513, 42107, 50635, 61541, 97565, 210535, 307705, 800033, 4000165]

約数ペア:

[(1, 4000165), (5, 800033), (13, 307705), (19, 210535), (41, 97565), (65, 61541), (79, 50635), (95, 42107), (205, 19513), (247, 16195), (395, 10127), (533, 7505), (779, 5135), (1027, 3895), (1235, 3239), (1501, 2665)]