18669490

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{5443}}^1$

素因数の和:5471

約数の個数: 32

約数和(自身を含む): 39196800

約数和(自身を除く): 20527310

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 5443, 10886, 27215, 38101, 54430, 76202, 190505, 266707, 381010, 533414, 1333535, 1866949, 2667070, 3733898, 9334745, 18669490]

約数ペア:

[(1, 18669490), (2, 9334745), (5, 3733898), (7, 2667070), (10, 1866949), (14, 1333535), (35, 533414), (49, 381010), (70, 266707), (98, 190505), (245, 76202), (343, 54430), (490, 38101), (686, 27215), (1715, 10886), (3430, 5443)]