18301720

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{6829}}^1$

素因数の和:6907

約数の個数: 32

約数和(自身を含む): 41799600

約数和(自身を除く): 23497880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 6829, 13658, 27316, 34145, 54632, 68290, 136580, 273160, 457543, 915086, 1830172, 2287715, 3660344, 4575430, 9150860, 18301720]

約数ペア:

[(1, 18301720), (2, 9150860), (4, 4575430), (5, 3660344), (8, 2287715), (10, 1830172), (20, 915086), (40, 457543), (67, 273160), (134, 136580), (268, 68290), (335, 54632), (536, 34145), (670, 27316), (1340, 13658), (2680, 6829)]