64743260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{347}}^1\times {\mathrm{491}}^1$

素因数の和:866

約数の個数: 48

約数和(自身を含む): 143821440

約数和(自身を除く): 79078180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 347, 380, 491, 694, 982, 1388, 1735, 1964, 2455, 3470, 4910, 6593, 6940, 9329, 9820, 13186, 18658, 26372, 32965, 37316, 46645, 65930, 93290, 131860, 170377, 186580, 340754, 681508, 851885, 1703770, 3237163, 3407540, 6474326, 12948652, 16185815, 32371630, 64743260]

約数ペア:

[(1, 64743260), (2, 32371630), (4, 16185815), (5, 12948652), (10, 6474326), (19, 3407540), (20, 3237163), (38, 1703770), (76, 851885), (95, 681508), (190, 340754), (347, 186580), (380, 170377), (491, 131860), (694, 93290), (982, 65930), (1388, 46645), (1735, 37316), (1964, 32965), (2455, 26372), (3470, 18658), (4910, 13186), (6593, 9820), (6940, 9329)]