81757456

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1063}}^1$

素因数の和:1124

約数の個数: 80

約数和(自身を含む): 189987840

約数和(自身を除く): 108230384

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 23, 38, 44, 46, 76, 88, 92, 152, 176, 184, 209, 253, 304, 368, 418, 437, 506, 836, 874, 1012, 1063, 1672, 1748, 2024, 2126, 3344, 3496, 4048, 4252, 4807, 6992, 8504, 9614, 11693, 17008, 19228, 20197, 23386, 24449, 38456, 40394, 46772, 48898, 76912, 80788, 93544, 97796, 161576, 187088, 195592, 222167, 268939, 323152, 391184, 444334, 464531, 537878, 888668, 929062, 1075756, 1777336, 1858124, 2151512, 3554672, 3716248, 4303024, 5109841, 7432496, 10219682, 20439364, 40878728, 81757456]

約数ペア:

[(1, 81757456), (2, 40878728), (4, 20439364), (8, 10219682), (11, 7432496), (16, 5109841), (19, 4303024), (22, 3716248), (23, 3554672), (38, 2151512), (44, 1858124), (46, 1777336), (76, 1075756), (88, 929062), (92, 888668), (152, 537878), (176, 464531), (184, 444334), (209, 391184), (253, 323152), (304, 268939), (368, 222167), (418, 195592), (437, 187088), (506, 161576), (836, 97796), (874, 93544), (1012, 80788), (1063, 76912), (1672, 48898), (1748, 46772), (2024, 40394), (2126, 38456), (3344, 24449), (3496, 23386), (4048, 20197), (4252, 19228), (4807, 17008), (6992, 11693), (8504, 9614)]