1266560

素因数分解:

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

素因数の和:1998

約数の個数: 32

約数和(自身を含む): 3029400

約数和(自身を除く): 1762840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 1979, 3958, 7916, 9895, 15832, 19790, 31664, 39580, 63328, 79160, 126656, 158320, 253312, 316640, 633280, 1266560]

約数ペア:

[(1, 1266560), (2, 633280), (4, 316640), (5, 253312), (8, 158320), (10, 126656), (16, 79160), (20, 63328), (32, 39580), (40, 31664), (64, 19790), (80, 15832), (128, 9895), (160, 7916), (320, 3958), (640, 1979)]