19690880

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2797}}^1$

素因数の和:2827

約数の個数: 64

約数和(自身を含む): 51371280

約数和(自身を除く): 31680400

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 320, 352, 440, 640, 704, 880, 1408, 1760, 2797, 3520, 5594, 7040, 11188, 13985, 22376, 27970, 30767, 44752, 55940, 61534, 89504, 111880, 123068, 153835, 179008, 223760, 246136, 307670, 358016, 447520, 492272, 615340, 895040, 984544, 1230680, 1790080, 1969088, 2461360, 3938176, 4922720, 9845440, 19690880]

約数ペア:

[(1, 19690880), (2, 9845440), (4, 4922720), (5, 3938176), (8, 2461360), (10, 1969088), (11, 1790080), (16, 1230680), (20, 984544), (22, 895040), (32, 615340), (40, 492272), (44, 447520), (55, 358016), (64, 307670), (80, 246136), (88, 223760), (110, 179008), (128, 153835), (160, 123068), (176, 111880), (220, 89504), (320, 61534), (352, 55940), (440, 44752), (640, 30767), (704, 27970), (880, 22376), (1408, 13985), (1760, 11188), (2797, 7040), (3520, 5594)]