20070400

素因数分解:

$2^{14}\times 5^2\times 7^2$

素因数の和:52

約数の個数: 135

約数和(自身を含む): 57899289

約数和(自身を除く): 37828889

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 64, 70, 80, 98, 100, 112, 128, 140, 160, 175, 196, 200, 224, 245, 256, 280, 320, 350, 392, 400, 448, 490, 512, 560, 640, 700, 784, 800, 896, 980, 1024, 1120, 1225, 1280, 1400, 1568, 1600, 1792, 1960, 2048, 2240, 2450, 2560, 2800, 3136, 3200, 3584, 3920, 4096, 4480, 4900, 5120, 5600, 6272, 6400, 7168, 7840, 8192, 8960, 9800, 10240, 11200, 12544, 12800, 14336, 15680, 16384, 17920, 19600, 20480, 22400, 25088, 25600, 28672, 31360, 35840, 39200, 40960, 44800, 50176, 51200, 57344, 62720, 71680, 78400, 81920, 89600, 100352, 102400, 114688, 125440, 143360, 156800, 179200, 200704, 204800, 250880, 286720, 313600, 358400, 401408, 409600, 501760, 573440, 627200, 716800, 802816, 1003520, 1254400, 1433600, 2007040, 2508800, 2867200, 4014080, 5017600, 10035200, 20070400]

約数ペア:

[(1, 20070400), (2, 10035200), (4, 5017600), (5, 4014080), (7, 2867200), (8, 2508800), (10, 2007040), (14, 1433600), (16, 1254400), (20, 1003520), (25, 802816), (28, 716800), (32, 627200), (35, 573440), (40, 501760), (49, 409600), (50, 401408), (56, 358400), (64, 313600), (70, 286720), (80, 250880), (98, 204800), (100, 200704), (112, 179200), (128, 156800), (140, 143360), (160, 125440), (175, 114688), (196, 102400), (200, 100352), (224, 89600), (245, 81920), (256, 78400), (280, 71680), (320, 62720), (350, 57344), (392, 51200), (400, 50176), (448, 44800), (490, 40960), (512, 39200), (560, 35840), (640, 31360), (700, 28672), (784, 25600), (800, 25088), (896, 22400), (980, 20480), (1024, 19600), (1120, 17920), (1225, 16384), (1280, 15680), (1400, 14336), (1568, 12800), (1600, 12544), (1792, 11200), (1960, 10240), (2048, 9800), (2240, 8960), (2450, 8192), (2560, 7840), (2800, 7168), (3136, 6400), (3200, 6272), (3584, 5600), (3920, 5120), (4096, 4900)]