15320840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1061}}^1$

素因数の和:1110

約数の個数: 48

約数和(自身を含む): 36415980

約数和(自身を除く): 21095140

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1061, 1444, 1805, 2122, 2888, 3610, 4244, 5305, 7220, 8488, 10610, 14440, 20159, 21220, 40318, 42440, 80636, 100795, 161272, 201590, 383021, 403180, 766042, 806360, 1532084, 1915105, 3064168, 3830210, 7660420, 15320840]

約数ペア:

[(1, 15320840), (2, 7660420), (4, 3830210), (5, 3064168), (8, 1915105), (10, 1532084), (19, 806360), (20, 766042), (38, 403180), (40, 383021), (76, 201590), (95, 161272), (152, 100795), (190, 80636), (361, 42440), (380, 40318), (722, 21220), (760, 20159), (1061, 14440), (1444, 10610), (1805, 8488), (2122, 7220), (2888, 5305), (3610, 4244)]