28720034

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{557}}^1$

素因数の和:722

約数の個数: 32

約数和(自身を含む): 51425280

約数和(自身を除く): 22705246

約数列:

[1, 2, 7, 14, 29, 58, 127, 203, 254, 406, 557, 889, 1114, 1778, 3683, 3899, 7366, 7798, 16153, 25781, 32306, 51562, 70739, 113071, 141478, 226142, 495173, 990346, 2051431, 4102862, 14360017, 28720034]

約数ペア:

[(1, 28720034), (2, 14360017), (7, 4102862), (14, 2051431), (29, 990346), (58, 495173), (127, 226142), (203, 141478), (254, 113071), (406, 70739), (557, 51562), (889, 32306), (1114, 25781), (1778, 16153), (3683, 7798), (3899, 7366)]