80027800

素因数分解:

$2^3\times 5^2\times {\mathrm{109}}^1\times {\mathrm{3671}}^1$

素因数の和:3796

約数の個数: 48

約数和(自身を含む): 187822800

約数和(自身を除く): 107795000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 109, 200, 218, 436, 545, 872, 1090, 2180, 2725, 3671, 4360, 5450, 7342, 10900, 14684, 18355, 21800, 29368, 36710, 73420, 91775, 146840, 183550, 367100, 400139, 734200, 800278, 1600556, 2000695, 3201112, 4001390, 8002780, 10003475, 16005560, 20006950, 40013900, 80027800]

約数ペア:

[(1, 80027800), (2, 40013900), (4, 20006950), (5, 16005560), (8, 10003475), (10, 8002780), (20, 4001390), (25, 3201112), (40, 2000695), (50, 1600556), (100, 800278), (109, 734200), (200, 400139), (218, 367100), (436, 183550), (545, 146840), (872, 91775), (1090, 73420), (2180, 36710), (2725, 29368), (3671, 21800), (4360, 18355), (5450, 14684), (7342, 10900)]