81335960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107021}}^1$

素因数の和:107051

約数の個数: 32

約数和(自身を含む): 192639600

約数和(自身を除く): 111303640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 107021, 214042, 428084, 535105, 856168, 1070210, 2033399, 2140420, 4066798, 4280840, 8133596, 10166995, 16267192, 20333990, 40667980, 81335960]

約数ペア:

[(1, 81335960), (2, 40667980), (4, 20333990), (5, 16267192), (8, 10166995), (10, 8133596), (19, 4280840), (20, 4066798), (38, 2140420), (40, 2033399), (76, 1070210), (95, 856168), (152, 535105), (190, 428084), (380, 214042), (760, 107021)]