400629040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{17449}}^1$

素因数の和:17510

約数の個数: 80

約数和(自身を含む): 1090555200

約数和(自身を除く): 689926160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 56, 70, 80, 82, 112, 140, 164, 205, 280, 287, 328, 410, 560, 574, 656, 820, 1148, 1435, 1640, 2296, 2870, 3280, 4592, 5740, 11480, 17449, 22960, 34898, 69796, 87245, 122143, 139592, 174490, 244286, 279184, 348980, 488572, 610715, 697960, 715409, 977144, 1221430, 1395920, 1430818, 1954288, 2442860, 2861636, 3577045, 4885720, 5007863, 5723272, 7154090, 9771440, 10015726, 11446544, 14308180, 20031452, 25039315, 28616360, 40062904, 50078630, 57232720, 80125808, 100157260, 200314520, 400629040]

約数ペア:

[(1, 400629040), (2, 200314520), (4, 100157260), (5, 80125808), (7, 57232720), (8, 50078630), (10, 40062904), (14, 28616360), (16, 25039315), (20, 20031452), (28, 14308180), (35, 11446544), (40, 10015726), (41, 9771440), (56, 7154090), (70, 5723272), (80, 5007863), (82, 4885720), (112, 3577045), (140, 2861636), (164, 2442860), (205, 1954288), (280, 1430818), (287, 1395920), (328, 1221430), (410, 977144), (560, 715409), (574, 697960), (656, 610715), (820, 488572), (1148, 348980), (1435, 279184), (1640, 244286), (2296, 174490), (2870, 139592), (3280, 122143), (4592, 87245), (5740, 69796), (11480, 34898), (17449, 22960)]