21422080

素因数分解:

$2^{13}\times 5^1\times {\mathrm{523}}^1$

素因数の和:554

約数の個数: 56

約数和(自身を含む): 51508152

約数和(自身を除く): 30086072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 523, 640, 1024, 1046, 1280, 2048, 2092, 2560, 2615, 4096, 4184, 5120, 5230, 8192, 8368, 10240, 10460, 16736, 20480, 20920, 33472, 40960, 41840, 66944, 83680, 133888, 167360, 267776, 334720, 535552, 669440, 1071104, 1338880, 2142208, 2677760, 4284416, 5355520, 10711040, 21422080]

約数ペア:

[(1, 21422080), (2, 10711040), (4, 5355520), (5, 4284416), (8, 2677760), (10, 2142208), (16, 1338880), (20, 1071104), (32, 669440), (40, 535552), (64, 334720), (80, 267776), (128, 167360), (160, 133888), (256, 83680), (320, 66944), (512, 41840), (523, 40960), (640, 33472), (1024, 20920), (1046, 20480), (1280, 16736), (2048, 10460), (2092, 10240), (2560, 8368), (2615, 8192), (4096, 5230), (4184, 5120)]