18510380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1213}}^1$

素因数の和:1338

約数の個数: 48

約数和(自身を含む): 44869440

約数和(自身を除く): 26359060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 1090, 1213, 1526, 2180, 2426, 3052, 3815, 4852, 6065, 7630, 8491, 12130, 15260, 16982, 24260, 33964, 42455, 84910, 132217, 169820, 264434, 528868, 661085, 925519, 1322170, 1851038, 2644340, 3702076, 4627595, 9255190, 18510380]

約数ペア:

[(1, 18510380), (2, 9255190), (4, 4627595), (5, 3702076), (7, 2644340), (10, 1851038), (14, 1322170), (20, 925519), (28, 661085), (35, 528868), (70, 264434), (109, 169820), (140, 132217), (218, 84910), (436, 42455), (545, 33964), (763, 24260), (1090, 16982), (1213, 15260), (1526, 12130), (2180, 8491), (2426, 7630), (3052, 6065), (3815, 4852)]