18983560

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{27917}}^1$

素因数の和:27945

約数の個数: 32

約数和(自身を含む): 45227160

約数和(自身を除く): 26243600

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 27917, 55834, 111668, 139585, 223336, 279170, 474589, 558340, 949178, 1116680, 1898356, 2372945, 3796712, 4745890, 9491780, 18983560]

約数ペア:

[(1, 18983560), (2, 9491780), (4, 4745890), (5, 3796712), (8, 2372945), (10, 1898356), (17, 1116680), (20, 949178), (34, 558340), (40, 474589), (68, 279170), (85, 223336), (136, 139585), (170, 111668), (340, 55834), (680, 27917)]