65642560

素因数分解:

$2^6\times 5^1\times {\mathrm{205133}}^1$

素因数の和:205150

約数の個数: 28

約数和(自身を含む): 156312108

約数和(自身を除く): 90669548

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 205133, 410266, 820532, 1025665, 1641064, 2051330, 3282128, 4102660, 6564256, 8205320, 13128512, 16410640, 32821280, 65642560]

約数ペア:

[(1, 65642560), (2, 32821280), (4, 16410640), (5, 13128512), (8, 8205320), (10, 6564256), (16, 4102660), (20, 3282128), (32, 2051330), (40, 1641064), (64, 1025665), (80, 820532), (160, 410266), (320, 205133)]