20123893460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{1550377}}^1$

素因数の和:1550456

約数の個数: 48

約数和(自身を含む): 46883430720

約数和(自身を除く): 26759537260

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 59, 110, 118, 220, 236, 295, 590, 649, 1180, 1298, 2596, 3245, 6490, 12980, 1550377, 3100754, 6201508, 7751885, 15503770, 17054147, 31007540, 34108294, 68216588, 85270735, 91472243, 170541470, 182944486, 341082940, 365888972, 457361215, 914722430, 1006194673, 1829444860, 2012389346, 4024778692, 5030973365, 10061946730, 20123893460]

約数ペア:

[(1, 20123893460), (2, 10061946730), (4, 5030973365), (5, 4024778692), (10, 2012389346), (11, 1829444860), (20, 1006194673), (22, 914722430), (44, 457361215), (55, 365888972), (59, 341082940), (110, 182944486), (118, 170541470), (220, 91472243), (236, 85270735), (295, 68216588), (590, 34108294), (649, 31007540), (1180, 17054147), (1298, 15503770), (2596, 7751885), (3245, 6201508), (6490, 3100754), (12980, 1550377)]