12720914560

素因数分解:

$2^7\times 5^1\times {\mathrm{19876429}}^1$

素因数の和:19876448

約数の個数: 32

約数和(自身を含む): 30410937900

約数和(自身を除く): 17690023340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 19876429, 39752858, 79505716, 99382145, 159011432, 198764290, 318022864, 397528580, 636045728, 795057160, 1272091456, 1590114320, 2544182912, 3180228640, 6360457280, 12720914560]

約数ペア:

[(1, 12720914560), (2, 6360457280), (4, 3180228640), (5, 2544182912), (8, 1590114320), (10, 1272091456), (16, 795057160), (20, 636045728), (32, 397528580), (40, 318022864), (64, 198764290), (80, 159011432), (128, 99382145), (160, 79505716), (320, 39752858), (640, 19876429)]