81304724

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{241}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 157745280

約数和(自身を除く): 76440556

約数列:

[1, 2, 4, 19, 23, 38, 46, 76, 92, 193, 241, 386, 437, 482, 772, 874, 964, 1748, 3667, 4439, 4579, 5543, 7334, 8878, 9158, 11086, 14668, 17756, 18316, 22172, 46513, 84341, 93026, 105317, 168682, 186052, 210634, 337364, 421268, 883747, 1069799, 1767494, 2139598, 3534988, 4279196, 20326181, 40652362, 81304724]

約数ペア:

[(1, 81304724), (2, 40652362), (4, 20326181), (19, 4279196), (23, 3534988), (38, 2139598), (46, 1767494), (76, 1069799), (92, 883747), (193, 421268), (241, 337364), (386, 210634), (437, 186052), (482, 168682), (772, 105317), (874, 93026), (964, 84341), (1748, 46513), (3667, 22172), (4439, 18316), (4579, 17756), (5543, 14668), (7334, 11086), (8878, 9158)]