20227960120

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1297}}^1\times {\mathrm{20521}}^1$

素因数の和:21848

約数の個数: 64

約数和(自身を含む): 47947600800

約数和(自身を除く): 27719640680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 1297, 2594, 5188, 6485, 10376, 12970, 20521, 24643, 25940, 41042, 49286, 51880, 82084, 98572, 102605, 123215, 164168, 197144, 205210, 246430, 389899, 410420, 492860, 779798, 820840, 985720, 1559596, 1949495, 3119192, 3898990, 7797980, 15595960, 26615737, 53231474, 106462948, 133078685, 212925896, 266157370, 505699003, 532314740, 1011398006, 1064629480, 2022796012, 2528495015, 4045592024, 5056990030, 10113980060, 20227960120]

約数ペア:

[(1, 20227960120), (2, 10113980060), (4, 5056990030), (5, 4045592024), (8, 2528495015), (10, 2022796012), (19, 1064629480), (20, 1011398006), (38, 532314740), (40, 505699003), (76, 266157370), (95, 212925896), (152, 133078685), (190, 106462948), (380, 53231474), (760, 26615737), (1297, 15595960), (2594, 7797980), (5188, 3898990), (6485, 3119192), (10376, 1949495), (12970, 1559596), (20521, 985720), (24643, 820840), (25940, 779798), (41042, 492860), (49286, 410420), (51880, 389899), (82084, 246430), (98572, 205210), (102605, 197144), (123215, 164168)]