13261240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17449}}^1$

素因数の和:17479

約数の個数: 32

約数和(自身を含む): 31410000

約数和(自身を除く): 18148760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 17449, 34898, 69796, 87245, 139592, 174490, 331531, 348980, 663062, 697960, 1326124, 1657655, 2652248, 3315310, 6630620, 13261240]

約数ペア:

[(1, 13261240), (2, 6630620), (4, 3315310), (5, 2652248), (8, 1657655), (10, 1326124), (19, 697960), (20, 663062), (38, 348980), (40, 331531), (76, 174490), (95, 139592), (152, 87245), (190, 69796), (380, 34898), (760, 17449)]