678335920

素因数分解:

$2^4\times 5^1\times {\mathrm{8479199}}^1$

素因数の和:8479212

約数の個数: 20

約数和(自身を含む): 1577131200

約数和(自身を除く): 898795280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 8479199, 16958398, 33916796, 42395995, 67833592, 84791990, 135667184, 169583980, 339167960, 678335920]

約数ペア:

[(1, 678335920), (2, 339167960), (4, 169583980), (5, 135667184), (8, 84791990), (10, 67833592), (16, 42395995), (20, 33916796), (40, 16958398), (80, 8479199)]