18484880

素因数分解:

$2^4\times 5^1\times {\mathrm{229}}^1\times {\mathrm{1009}}^1$

素因数の和:1251

約数の個数: 40

約数和(自身を含む): 43207800

約数和(自身を除く): 24722920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 229, 458, 916, 1009, 1145, 1832, 2018, 2290, 3664, 4036, 4580, 5045, 8072, 9160, 10090, 16144, 18320, 20180, 40360, 80720, 231061, 462122, 924244, 1155305, 1848488, 2310610, 3696976, 4621220, 9242440, 18484880]

約数ペア:

[(1, 18484880), (2, 9242440), (4, 4621220), (5, 3696976), (8, 2310610), (10, 1848488), (16, 1155305), (20, 924244), (40, 462122), (80, 231061), (229, 80720), (458, 40360), (916, 20180), (1009, 18320), (1145, 16144), (1832, 10090), (2018, 9160), (2290, 8072), (3664, 5045), (4036, 4580)]