179006980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{3389}}^1$

素因数の和:3556

約数の個数: 48

約数和(自身を含む): 398664000

約数和(自身を除く): 219657020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 139, 190, 278, 380, 556, 695, 1390, 2641, 2780, 3389, 5282, 6778, 10564, 13205, 13556, 16945, 26410, 33890, 52820, 64391, 67780, 128782, 257564, 321955, 471071, 643910, 942142, 1287820, 1884284, 2355355, 4710710, 8950349, 9421420, 17900698, 35801396, 44751745, 89503490, 179006980]

約数ペア:

[(1, 179006980), (2, 89503490), (4, 44751745), (5, 35801396), (10, 17900698), (19, 9421420), (20, 8950349), (38, 4710710), (76, 2355355), (95, 1884284), (139, 1287820), (190, 942142), (278, 643910), (380, 471071), (556, 321955), (695, 257564), (1390, 128782), (2641, 67780), (2780, 64391), (3389, 52820), (5282, 33890), (6778, 26410), (10564, 16945), (13205, 13556)]