64573360

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{19687}}^1$

素因数の和:19741

約数の個数: 40

約数和(自身を含む): 153802656

約数和(自身を除く): 89229296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 19687, 39374, 78748, 98435, 157496, 196870, 314992, 393740, 787480, 807167, 1574960, 1614334, 3228668, 4035835, 6457336, 8071670, 12914672, 16143340, 32286680, 64573360]

約数ペア:

[(1, 64573360), (2, 32286680), (4, 16143340), (5, 12914672), (8, 8071670), (10, 6457336), (16, 4035835), (20, 3228668), (40, 1614334), (41, 1574960), (80, 807167), (82, 787480), (164, 393740), (205, 314992), (328, 196870), (410, 157496), (656, 98435), (820, 78748), (1640, 39374), (3280, 19687)]