18220345

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1499}}^1$

素因数の和:1545

約数の個数: 32

約数和(自身を含む): 27216000

約数和(自身を除く): 8995655

約数列:

[1, 5, 11, 13, 17, 55, 65, 85, 143, 187, 221, 715, 935, 1105, 1499, 2431, 7495, 12155, 16489, 19487, 25483, 82445, 97435, 127415, 214357, 280313, 331279, 1071785, 1401565, 1656395, 3644069, 18220345]

約数ペア:

[(1, 18220345), (5, 3644069), (11, 1656395), (13, 1401565), (17, 1071785), (55, 331279), (65, 280313), (85, 214357), (143, 127415), (187, 97435), (221, 82445), (715, 25483), (935, 19487), (1105, 16489), (1499, 12155), (2431, 7495)]