207817960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{2957}}^1$

素因数の和:3226

約数の個数: 64

約数和(自身を含む): 536699520

約数和(自身を除く): 328881560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 251, 280, 502, 1004, 1255, 1757, 2008, 2510, 2957, 3514, 5020, 5914, 7028, 8785, 10040, 11828, 14056, 14785, 17570, 20699, 23656, 29570, 35140, 41398, 59140, 70280, 82796, 103495, 118280, 165592, 206990, 413980, 742207, 827960, 1484414, 2968828, 3711035, 5195449, 5937656, 7422070, 10390898, 14844140, 20781796, 25977245, 29688280, 41563592, 51954490, 103908980, 207817960]

約数ペア:

[(1, 207817960), (2, 103908980), (4, 51954490), (5, 41563592), (7, 29688280), (8, 25977245), (10, 20781796), (14, 14844140), (20, 10390898), (28, 7422070), (35, 5937656), (40, 5195449), (56, 3711035), (70, 2968828), (140, 1484414), (251, 827960), (280, 742207), (502, 413980), (1004, 206990), (1255, 165592), (1757, 118280), (2008, 103495), (2510, 82796), (2957, 70280), (3514, 59140), (5020, 41398), (5914, 35140), (7028, 29570), (8785, 23656), (10040, 20699), (11828, 17570), (14056, 14785)]