858489040

素因数分解:

$2^4\times 5^1\times {\mathrm{10731113}}^1$

素因数の和:10731126

約数の個数: 20

約数和(自身を含む): 1995987204

約数和(自身を除く): 1137498164

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 10731113, 21462226, 42924452, 53655565, 85848904, 107311130, 171697808, 214622260, 429244520, 858489040]

約数ペア:

[(1, 858489040), (2, 429244520), (4, 214622260), (5, 171697808), (8, 107311130), (10, 85848904), (16, 53655565), (20, 42924452), (40, 21462226), (80, 10731113)]