420125960

素因数分解:

$2^3\times 5^1\times {\mathrm{2239}}^1\times {\mathrm{4691}}^1$

素因数の和:6941

約数の個数: 32

約数和(自身を含む): 945907200

約数和(自身を除く): 525781240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2239, 4478, 4691, 8956, 9382, 11195, 17912, 18764, 22390, 23455, 37528, 44780, 46910, 89560, 93820, 187640, 10503149, 21006298, 42012596, 52515745, 84025192, 105031490, 210062980, 420125960]

約数ペア:

[(1, 420125960), (2, 210062980), (4, 105031490), (5, 84025192), (8, 52515745), (10, 42012596), (20, 21006298), (40, 10503149), (2239, 187640), (4478, 93820), (4691, 89560), (8956, 46910), (9382, 44780), (11195, 37528), (17912, 23455), (18764, 22390)]