28837040

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3307}}^1$

素因数の和:3429

約数の個数: 40

約数和(自身を含む): 67681680

約数和(自身を除く): 38844640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 3307, 4360, 6614, 8720, 13228, 16535, 26456, 33070, 52912, 66140, 132280, 264560, 360463, 720926, 1441852, 1802315, 2883704, 3604630, 5767408, 7209260, 14418520, 28837040]

約数ペア:

[(1, 28837040), (2, 14418520), (4, 7209260), (5, 5767408), (8, 3604630), (10, 2883704), (16, 1802315), (20, 1441852), (40, 720926), (80, 360463), (109, 264560), (218, 132280), (436, 66140), (545, 52912), (872, 33070), (1090, 26456), (1744, 16535), (2180, 13228), (3307, 8720), (4360, 6614)]