85720280

素因数分解:

$2^3\times 5^1\times {\mathrm{1447}}^1\times {\mathrm{1481}}^1$

素因数の和:2939

約数の個数: 32

約数和(自身を含む): 193134240

約数和(自身を除く): 107413960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1447, 1481, 2894, 2962, 5788, 5924, 7235, 7405, 11576, 11848, 14470, 14810, 28940, 29620, 57880, 59240, 2143007, 4286014, 8572028, 10715035, 17144056, 21430070, 42860140, 85720280]

約数ペア:

[(1, 85720280), (2, 42860140), (4, 21430070), (5, 17144056), (8, 10715035), (10, 8572028), (20, 4286014), (40, 2143007), (1447, 59240), (1481, 57880), (2894, 29620), (2962, 28940), (5788, 14810), (5924, 14470), (7235, 11848), (7405, 11576)]