13154840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{911}}^1$

素因数の和:960

約数の個数: 48

約数和(自身を含む): 31272480

約数和(自身を除く): 18117640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 911, 1444, 1805, 1822, 2888, 3610, 3644, 4555, 7220, 7288, 9110, 14440, 17309, 18220, 34618, 36440, 69236, 86545, 138472, 173090, 328871, 346180, 657742, 692360, 1315484, 1644355, 2630968, 3288710, 6577420, 13154840]

約数ペア:

[(1, 13154840), (2, 6577420), (4, 3288710), (5, 2630968), (8, 1644355), (10, 1315484), (19, 692360), (20, 657742), (38, 346180), (40, 328871), (76, 173090), (95, 138472), (152, 86545), (190, 69236), (361, 36440), (380, 34618), (722, 18220), (760, 17309), (911, 14440), (1444, 9110), (1805, 7288), (1822, 7220), (2888, 4555), (3610, 3644)]