20912960

素因数分解:

$2^6\times 5^1\times {\mathrm{65353}}^1$

素因数の和:65370

約数の個数: 28

約数和(自身を含む): 49799748

約数和(自身を除く): 28886788

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 65353, 130706, 261412, 326765, 522824, 653530, 1045648, 1307060, 2091296, 2614120, 4182592, 5228240, 10456480, 20912960]

約数ペア:

[(1, 20912960), (2, 10456480), (4, 5228240), (5, 4182592), (8, 2614120), (10, 2091296), (16, 1307060), (20, 1045648), (32, 653530), (40, 522824), (64, 326765), (80, 261412), (160, 130706), (320, 65353)]