13219840

素因数分解:

$2^{11}\times 5^1\times {\mathrm{1291}}^1$

素因数の和:1318

約数の個数: 48

約数和(自身を含む): 31744440

約数和(自身を除く): 18524600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 1291, 2048, 2560, 2582, 5120, 5164, 6455, 10240, 10328, 12910, 20656, 25820, 41312, 51640, 82624, 103280, 165248, 206560, 330496, 413120, 660992, 826240, 1321984, 1652480, 2643968, 3304960, 6609920, 13219840]

約数ペア:

[(1, 13219840), (2, 6609920), (4, 3304960), (5, 2643968), (8, 1652480), (10, 1321984), (16, 826240), (20, 660992), (32, 413120), (40, 330496), (64, 206560), (80, 165248), (128, 103280), (160, 82624), (256, 51640), (320, 41312), (512, 25820), (640, 20656), (1024, 12910), (1280, 10328), (1291, 10240), (2048, 6455), (2560, 5164), (2582, 5120)]