20523200

素因数分解:

$2^6\times 5^2\times {\mathrm{101}}^1\times {\mathrm{127}}^1$

素因数の和:250

約数の個数: 84

約数和(自身を含む): 51401472

約数和(自身を除く): 30878272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 101, 127, 160, 200, 202, 254, 320, 400, 404, 505, 508, 635, 800, 808, 1010, 1016, 1270, 1600, 1616, 2020, 2032, 2525, 2540, 3175, 3232, 4040, 4064, 5050, 5080, 6350, 6464, 8080, 8128, 10100, 10160, 12700, 12827, 16160, 20200, 20320, 25400, 25654, 32320, 40400, 40640, 50800, 51308, 64135, 80800, 101600, 102616, 128270, 161600, 203200, 205232, 256540, 320675, 410464, 513080, 641350, 820928, 1026160, 1282700, 2052320, 2565400, 4104640, 5130800, 10261600, 20523200]

約数ペア:

[(1, 20523200), (2, 10261600), (4, 5130800), (5, 4104640), (8, 2565400), (10, 2052320), (16, 1282700), (20, 1026160), (25, 820928), (32, 641350), (40, 513080), (50, 410464), (64, 320675), (80, 256540), (100, 205232), (101, 203200), (127, 161600), (160, 128270), (200, 102616), (202, 101600), (254, 80800), (320, 64135), (400, 51308), (404, 50800), (505, 40640), (508, 40400), (635, 32320), (800, 25654), (808, 25400), (1010, 20320), (1016, 20200), (1270, 16160), (1600, 12827), (1616, 12700), (2020, 10160), (2032, 10100), (2525, 8128), (2540, 8080), (3175, 6464), (3232, 6350), (4040, 5080), (4064, 5050)]