20001656

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2411}}^1$

素因数の和:2495

約数の個数: 32

約数和(自身を含む): 40376880

約数和(自身を除く): 20375224

約数列:

[1, 2, 4, 8, 17, 34, 61, 68, 122, 136, 244, 488, 1037, 2074, 2411, 4148, 4822, 8296, 9644, 19288, 40987, 81974, 147071, 163948, 294142, 327896, 588284, 1176568, 2500207, 5000414, 10000828, 20001656]

約数ペア:

[(1, 20001656), (2, 10000828), (4, 5000414), (8, 2500207), (17, 1176568), (34, 588284), (61, 327896), (68, 294142), (122, 163948), (136, 147071), (244, 81974), (488, 40987), (1037, 19288), (2074, 9644), (2411, 8296), (4148, 4822)]