80281600

素因数分解:

$2^{16}\times 5^2\times 7^2$

素因数の和:56

約数の個数: 153

約数和(自身を含む): 231602457

約数和(自身を除く): 151320857

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, 32768, 35840, 39200, 40960, 44800, 50176, 51200, 57344, 62720, 65536, 71680, 78400, 81920, 89600, 100352, 102400, 114688, 125440, 143360, 156800, 163840, 179200, 200704, 204800, 229376, 250880, 286720, 313600, 327680, 358400, 401408, 409600, 458752, 501760, 573440, 627200, 716800, 802816, 819200, 1003520, 1146880, 1254400, 1433600, 1605632, 1638400, 2007040, 2293760, 2508800, 2867200, 3211264, 4014080, 5017600, 5734400, 8028160, 10035200, 11468800, 16056320, 20070400, 40140800, 80281600]

約数ペア:

[(1, 80281600), (2, 40140800), (4, 20070400), (5, 16056320), (7, 11468800), (8, 10035200), (10, 8028160), (14, 5734400), (16, 5017600), (20, 4014080), (25, 3211264), (28, 2867200), (32, 2508800), (35, 2293760), (40, 2007040), (49, 1638400), (50, 1605632), (56, 1433600), (64, 1254400), (70, 1146880), (80, 1003520), (98, 819200), (100, 802816), (112, 716800), (128, 627200), (140, 573440), (160, 501760), (175, 458752), (196, 409600), (200, 401408), (224, 358400), (245, 327680), (256, 313600), (280, 286720), (320, 250880), (350, 229376), (392, 204800), (400, 200704), (448, 179200), (490, 163840), (512, 156800), (560, 143360), (640, 125440), (700, 114688), (784, 102400), (800, 100352), (896, 89600), (980, 81920), (1024, 78400), (1120, 71680), (1225, 65536), (1280, 62720), (1400, 57344), (1568, 51200), (1600, 50176), (1792, 44800), (1960, 40960), (2048, 39200), (2240, 35840), (2450, 32768), (2560, 31360), (2800, 28672), (3136, 25600), (3200, 25088), (3584, 22400), (3920, 20480), (4096, 19600), (4480, 17920), (4900, 16384), (5120, 15680), (5600, 14336), (6272, 12800), (6400, 12544), (7168, 11200), (7840, 10240), (8192, 9800)]