20294855

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1483}}^1$

素因数の和:1535

約数の個数: 32

約数和(自身を含む): 30772224

約数和(自身を除く): 10477369

約数列:

[1, 5, 7, 17, 23, 35, 85, 115, 119, 161, 391, 595, 805, 1483, 1955, 2737, 7415, 10381, 13685, 25211, 34109, 51905, 126055, 170545, 176477, 238763, 579853, 882385, 1193815, 2899265, 4058971, 20294855]

約数ペア:

[(1, 20294855), (5, 4058971), (7, 2899265), (17, 1193815), (23, 882385), (35, 579853), (85, 238763), (115, 176477), (119, 170545), (161, 126055), (391, 51905), (595, 34109), (805, 25211), (1483, 13685), (1955, 10381), (2737, 7415)]