206449280

素因数分解:

$2^7\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1979}}^1$

素因数の和:2161

約数の個数: 64

約数和(自身を含む): 496821600

約数和(自身を除く): 290372320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 163, 320, 326, 640, 652, 815, 1304, 1630, 1979, 2608, 3260, 3958, 5216, 6520, 7916, 9895, 10432, 13040, 15832, 19790, 20864, 26080, 31664, 39580, 52160, 63328, 79160, 104320, 126656, 158320, 253312, 316640, 322577, 633280, 645154, 1266560, 1290308, 1612885, 2580616, 3225770, 5161232, 6451540, 10322464, 12903080, 20644928, 25806160, 41289856, 51612320, 103224640, 206449280]

約数ペア:

[(1, 206449280), (2, 103224640), (4, 51612320), (5, 41289856), (8, 25806160), (10, 20644928), (16, 12903080), (20, 10322464), (32, 6451540), (40, 5161232), (64, 3225770), (80, 2580616), (128, 1612885), (160, 1290308), (163, 1266560), (320, 645154), (326, 633280), (640, 322577), (652, 316640), (815, 253312), (1304, 158320), (1630, 126656), (1979, 104320), (2608, 79160), (3260, 63328), (3958, 52160), (5216, 39580), (6520, 31664), (7916, 26080), (9895, 20864), (10432, 19790), (13040, 15832)]