2017125904

素因数分解:

$2^4\times {\mathrm{71}}^2\times {\mathrm{89}}^1\times {\mathrm{281}}^1$

素因数の和:520

約数の個数: 60

約数和(自身を含む): 4022806140

約数和(自身を除く): 2005680236

約数列:

[1, 2, 4, 8, 16, 71, 89, 142, 178, 281, 284, 356, 562, 568, 712, 1124, 1136, 1424, 2248, 4496, 5041, 6319, 10082, 12638, 19951, 20164, 25009, 25276, 39902, 40328, 50018, 50552, 79804, 80656, 100036, 101104, 159608, 200072, 319216, 400144, 448649, 897298, 1416521, 1775639, 1794596, 2833042, 3551278, 3589192, 5666084, 7102556, 7178384, 11332168, 14205112, 22664336, 28410224, 126070369, 252140738, 504281476, 1008562952, 2017125904]

約数ペア:

[(1, 2017125904), (2, 1008562952), (4, 504281476), (8, 252140738), (16, 126070369), (71, 28410224), (89, 22664336), (142, 14205112), (178, 11332168), (281, 7178384), (284, 7102556), (356, 5666084), (562, 3589192), (568, 3551278), (712, 2833042), (1124, 1794596), (1136, 1775639), (1424, 1416521), (2248, 897298), (4496, 448649), (5041, 400144), (6319, 319216), (10082, 200072), (12638, 159608), (19951, 101104), (20164, 100036), (25009, 80656), (25276, 79804), (39902, 50552), (40328, 50018)]