7771640

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{2003}}^1$

素因数の和:2111

約数の個数: 32

約数和(自身を含む): 17675280

約数和(自身を除く): 9903640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 2003, 3880, 4006, 8012, 10015, 16024, 20030, 40060, 80120, 194291, 388582, 777164, 971455, 1554328, 1942910, 3885820, 7771640]

約数ペア:

[(1, 7771640), (2, 3885820), (4, 1942910), (5, 1554328), (8, 971455), (10, 777164), (20, 388582), (40, 194291), (97, 80120), (194, 40060), (388, 20030), (485, 16024), (776, 10015), (970, 8012), (1940, 4006), (2003, 3880)]