1620131140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{967}}^1\times {\mathrm{4409}}^1$

素因数の和:5404

約数の個数: 48

約数和(自身を含む): 3585859200

約数和(自身を除く): 1965728060

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 967, 1934, 3868, 4409, 4835, 8818, 9670, 17636, 18373, 19340, 22045, 36746, 44090, 73492, 83771, 88180, 91865, 167542, 183730, 335084, 367460, 418855, 837710, 1675420, 4263503, 8527006, 17054012, 21317515, 42635030, 81006557, 85270060, 162013114, 324026228, 405032785, 810065570, 1620131140]

約数ペア:

[(1, 1620131140), (2, 810065570), (4, 405032785), (5, 324026228), (10, 162013114), (19, 85270060), (20, 81006557), (38, 42635030), (76, 21317515), (95, 17054012), (190, 8527006), (380, 4263503), (967, 1675420), (1934, 837710), (3868, 418855), (4409, 367460), (4835, 335084), (8818, 183730), (9670, 167542), (17636, 91865), (18373, 88180), (19340, 83771), (22045, 73492), (36746, 44090)]