66683720

素因数分解:

$2^3\times 5^1\times {\mathrm{839}}^1\times {\mathrm{1987}}^1$

素因数の和:2837

約数の個数: 32

約数和(自身を含む): 150292800

約数和(自身を除く): 83609080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 839, 1678, 1987, 3356, 3974, 4195, 6712, 7948, 8390, 9935, 15896, 16780, 19870, 33560, 39740, 79480, 1667093, 3334186, 6668372, 8335465, 13336744, 16670930, 33341860, 66683720]

約数ペア:

[(1, 66683720), (2, 33341860), (4, 16670930), (5, 13336744), (8, 8335465), (10, 6668372), (20, 3334186), (40, 1667093), (839, 79480), (1678, 39740), (1987, 33560), (3356, 19870), (3974, 16780), (4195, 15896), (6712, 9935), (7948, 8390)]