19775680

素因数分解:

$2^6\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2131}}^1$

素因数の和:2177

約数の個数: 56

約数和(自身を含む): 48737520

約数和(自身を除く): 28961840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 145, 160, 232, 290, 320, 464, 580, 928, 1160, 1856, 2131, 2320, 4262, 4640, 8524, 9280, 10655, 17048, 21310, 34096, 42620, 61799, 68192, 85240, 123598, 136384, 170480, 247196, 308995, 340960, 494392, 617990, 681920, 988784, 1235980, 1977568, 2471960, 3955136, 4943920, 9887840, 19775680]

約数ペア:

[(1, 19775680), (2, 9887840), (4, 4943920), (5, 3955136), (8, 2471960), (10, 1977568), (16, 1235980), (20, 988784), (29, 681920), (32, 617990), (40, 494392), (58, 340960), (64, 308995), (80, 247196), (116, 170480), (145, 136384), (160, 123598), (232, 85240), (290, 68192), (320, 61799), (464, 42620), (580, 34096), (928, 21310), (1160, 17048), (1856, 10655), (2131, 9280), (2320, 8524), (4262, 4640)]