397827520

素因数分解:

$2^6\times 5^1\times {\mathrm{1243211}}^1$

素因数の和:1243228

約数の個数: 28

約数和(自身を含む): 947327544

約数和(自身を除く): 549500024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1243211, 2486422, 4972844, 6216055, 9945688, 12432110, 19891376, 24864220, 39782752, 49728440, 79565504, 99456880, 198913760, 397827520]

約数ペア:

[(1, 397827520), (2, 198913760), (4, 99456880), (5, 79565504), (8, 49728440), (10, 39782752), (16, 24864220), (20, 19891376), (32, 12432110), (40, 9945688), (64, 6216055), (80, 4972844), (160, 2486422), (320, 1243211)]