206545280

素因数分解:

$2^7\times 5^1\times {\mathrm{322727}}^1$

素因数の和:322746

約数の個数: 32

約数和(自身を含む): 493773840

約数和(自身を除く): 287228560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 322727, 645454, 1290908, 1613635, 2581816, 3227270, 5163632, 6454540, 10327264, 12909080, 20654528, 25818160, 41309056, 51636320, 103272640, 206545280]

約数ペア:

[(1, 206545280), (2, 103272640), (4, 51636320), (5, 41309056), (8, 25818160), (10, 20654528), (16, 12909080), (20, 10327264), (32, 6454540), (40, 5163632), (64, 3227270), (80, 2581816), (128, 1613635), (160, 1290908), (320, 645454), (640, 322727)]