21750400

素因数分解:

$2^7\times 5^2\times 7^1\times {\mathrm{971}}^1$

素因数の和:1002

約数の個数: 96

約数和(自身を含む): 61469280

約数和(自身を除く): 39718880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 112, 128, 140, 160, 175, 200, 224, 280, 320, 350, 400, 448, 560, 640, 700, 800, 896, 971, 1120, 1400, 1600, 1942, 2240, 2800, 3200, 3884, 4480, 4855, 5600, 6797, 7768, 9710, 11200, 13594, 15536, 19420, 22400, 24275, 27188, 31072, 33985, 38840, 48550, 54376, 62144, 67970, 77680, 97100, 108752, 124288, 135940, 155360, 169925, 194200, 217504, 271880, 310720, 339850, 388400, 435008, 543760, 621440, 679700, 776800, 870016, 1087520, 1359400, 1553600, 2175040, 2718800, 3107200, 4350080, 5437600, 10875200, 21750400]

約数ペア:

[(1, 21750400), (2, 10875200), (4, 5437600), (5, 4350080), (7, 3107200), (8, 2718800), (10, 2175040), (14, 1553600), (16, 1359400), (20, 1087520), (25, 870016), (28, 776800), (32, 679700), (35, 621440), (40, 543760), (50, 435008), (56, 388400), (64, 339850), (70, 310720), (80, 271880), (100, 217504), (112, 194200), (128, 169925), (140, 155360), (160, 135940), (175, 124288), (200, 108752), (224, 97100), (280, 77680), (320, 67970), (350, 62144), (400, 54376), (448, 48550), (560, 38840), (640, 33985), (700, 31072), (800, 27188), (896, 24275), (971, 22400), (1120, 19420), (1400, 15536), (1600, 13594), (1942, 11200), (2240, 9710), (2800, 7768), (3200, 6797), (3884, 5600), (4480, 4855)]