18541880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{66221}}^1$

素因数の和:66239

約数の個数: 32

約数和(自身を含む): 47679840

約数和(自身を除く): 29137960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 66221, 132442, 264884, 331105, 463547, 529768, 662210, 927094, 1324420, 1854188, 2317735, 2648840, 3708376, 4635470, 9270940, 18541880]

約数ペア:

[(1, 18541880), (2, 9270940), (4, 4635470), (5, 3708376), (7, 2648840), (8, 2317735), (10, 1854188), (14, 1324420), (20, 927094), (28, 662210), (35, 529768), (40, 463547), (56, 331105), (70, 264884), (140, 132442), (280, 66221)]