21728000

素因数分解:

$2^8\times 5^3\times 7^1\times {\mathrm{97}}^1$

素因数の和:135

約数の個数: 144

約数和(自身を含む): 62497344

約数和(自身を除く): 40769344

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 97, 100, 112, 125, 128, 140, 160, 175, 194, 200, 224, 250, 256, 280, 320, 350, 388, 400, 448, 485, 500, 560, 640, 679, 700, 776, 800, 875, 896, 970, 1000, 1120, 1280, 1358, 1400, 1552, 1600, 1750, 1792, 1940, 2000, 2240, 2425, 2716, 2800, 3104, 3200, 3395, 3500, 3880, 4000, 4480, 4850, 5432, 5600, 6208, 6400, 6790, 7000, 7760, 8000, 8960, 9700, 10864, 11200, 12125, 12416, 13580, 14000, 15520, 16000, 16975, 19400, 21728, 22400, 24250, 24832, 27160, 28000, 31040, 32000, 33950, 38800, 43456, 44800, 48500, 54320, 56000, 62080, 67900, 77600, 84875, 86912, 97000, 108640, 112000, 124160, 135800, 155200, 169750, 173824, 194000, 217280, 224000, 271600, 310400, 339500, 388000, 434560, 543200, 620800, 679000, 776000, 869120, 1086400, 1358000, 1552000, 2172800, 2716000, 3104000, 4345600, 5432000, 10864000, 21728000]

約数ペア:

[(1, 21728000), (2, 10864000), (4, 5432000), (5, 4345600), (7, 3104000), (8, 2716000), (10, 2172800), (14, 1552000), (16, 1358000), (20, 1086400), (25, 869120), (28, 776000), (32, 679000), (35, 620800), (40, 543200), (50, 434560), (56, 388000), (64, 339500), (70, 310400), (80, 271600), (97, 224000), (100, 217280), (112, 194000), (125, 173824), (128, 169750), (140, 155200), (160, 135800), (175, 124160), (194, 112000), (200, 108640), (224, 97000), (250, 86912), (256, 84875), (280, 77600), (320, 67900), (350, 62080), (388, 56000), (400, 54320), (448, 48500), (485, 44800), (500, 43456), (560, 38800), (640, 33950), (679, 32000), (700, 31040), (776, 28000), (800, 27160), (875, 24832), (896, 24250), (970, 22400), (1000, 21728), (1120, 19400), (1280, 16975), (1358, 16000), (1400, 15520), (1552, 14000), (1600, 13580), (1750, 12416), (1792, 12125), (1940, 11200), (2000, 10864), (2240, 9700), (2425, 8960), (2716, 8000), (2800, 7760), (3104, 7000), (3200, 6790), (3395, 6400), (3500, 6208), (3880, 5600), (4000, 5432), (4480, 4850)]