80563520

素因数分解:

$2^6\times 5^1\times {\mathrm{251761}}^1$

素因数の和:251778

約数の個数: 28

約数和(自身を含む): 191842644

約数和(自身を除く): 111279124

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 251761, 503522, 1007044, 1258805, 2014088, 2517610, 4028176, 5035220, 8056352, 10070440, 16112704, 20140880, 40281760, 80563520]

約数ペア:

[(1, 80563520), (2, 40281760), (4, 20140880), (5, 16112704), (8, 10070440), (10, 8056352), (16, 5035220), (20, 4028176), (32, 2517610), (40, 2014088), (64, 1258805), (80, 1007044), (160, 503522), (320, 251761)]