27638920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{887}}^1$

素因数の和:958

約数の個数: 64

約数和(自身を含む): 67132800

約数和(自身を除く): 39493880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 76, 82, 95, 152, 164, 190, 205, 328, 380, 410, 760, 779, 820, 887, 1558, 1640, 1774, 3116, 3548, 3895, 4435, 6232, 7096, 7790, 8870, 15580, 16853, 17740, 31160, 33706, 35480, 36367, 67412, 72734, 84265, 134824, 145468, 168530, 181835, 290936, 337060, 363670, 674120, 690973, 727340, 1381946, 1454680, 2763892, 3454865, 5527784, 6909730, 13819460, 27638920]

約数ペア:

[(1, 27638920), (2, 13819460), (4, 6909730), (5, 5527784), (8, 3454865), (10, 2763892), (19, 1454680), (20, 1381946), (38, 727340), (40, 690973), (41, 674120), (76, 363670), (82, 337060), (95, 290936), (152, 181835), (164, 168530), (190, 145468), (205, 134824), (328, 84265), (380, 72734), (410, 67412), (760, 36367), (779, 35480), (820, 33706), (887, 31160), (1558, 17740), (1640, 16853), (1774, 15580), (3116, 8870), (3548, 7790), (3895, 7096), (4435, 6232)]