279778960

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{30949}}^1$

素因数の和:31075

約数の個数: 40

約数和(自身を含む): 656263800

約数和(自身を除く): 376484840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 226, 452, 565, 904, 1130, 1808, 2260, 4520, 9040, 30949, 61898, 123796, 154745, 247592, 309490, 495184, 618980, 1237960, 2475920, 3497237, 6994474, 13988948, 17486185, 27977896, 34972370, 55955792, 69944740, 139889480, 279778960]

約数ペア:

[(1, 279778960), (2, 139889480), (4, 69944740), (5, 55955792), (8, 34972370), (10, 27977896), (16, 17486185), (20, 13988948), (40, 6994474), (80, 3497237), (113, 2475920), (226, 1237960), (452, 618980), (565, 495184), (904, 309490), (1130, 247592), (1808, 154745), (2260, 123796), (4520, 61898), (9040, 30949)]