851045120

素因数分解:

$2^8\times 5^1\times {\mathrm{664879}}^1$

素因数の和:664900

約数の個数: 36

約数和(自身を含む): 2038522080

約数和(自身を除く): 1187476960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 664879, 1329758, 2659516, 3324395, 5319032, 6648790, 10638064, 13297580, 21276128, 26595160, 42552256, 53190320, 85104512, 106380640, 170209024, 212761280, 425522560, 851045120]

約数ペア:

[(1, 851045120), (2, 425522560), (4, 212761280), (5, 170209024), (8, 106380640), (10, 85104512), (16, 53190320), (20, 42552256), (32, 26595160), (40, 21276128), (64, 13297580), (80, 10638064), (128, 6648790), (160, 5319032), (256, 3324395), (320, 2659516), (640, 1329758), (1280, 664879)]