15840640

素因数分解:

$2^7\times 5^1\times {\mathrm{53}}^1\times {\mathrm{467}}^1$

素因数の和:539

約数の個数: 64

約数和(自身を含む): 38666160

約数和(自身を除く): 22825520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 128, 160, 212, 265, 320, 424, 467, 530, 640, 848, 934, 1060, 1696, 1868, 2120, 2335, 3392, 3736, 4240, 4670, 6784, 7472, 8480, 9340, 14944, 16960, 18680, 24751, 29888, 33920, 37360, 49502, 59776, 74720, 99004, 123755, 149440, 198008, 247510, 298880, 396016, 495020, 792032, 990040, 1584064, 1980080, 3168128, 3960160, 7920320, 15840640]

約数ペア:

[(1, 15840640), (2, 7920320), (4, 3960160), (5, 3168128), (8, 1980080), (10, 1584064), (16, 990040), (20, 792032), (32, 495020), (40, 396016), (53, 298880), (64, 247510), (80, 198008), (106, 149440), (128, 123755), (160, 99004), (212, 74720), (265, 59776), (320, 49502), (424, 37360), (467, 33920), (530, 29888), (640, 24751), (848, 18680), (934, 16960), (1060, 14944), (1696, 9340), (1868, 8480), (2120, 7472), (2335, 6784), (3392, 4670), (3736, 4240)]