20075480

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{6353}}^1$

素因数の和:6443

約数の個数: 32

約数和(自身を含む): 45748800

約数和(自身を除く): 25673320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 6353, 12706, 25412, 31765, 50824, 63530, 127060, 254120, 501887, 1003774, 2007548, 2509435, 4015096, 5018870, 10037740, 20075480]

約数ペア:

[(1, 20075480), (2, 10037740), (4, 5018870), (5, 4015096), (8, 2509435), (10, 2007548), (20, 1003774), (40, 501887), (79, 254120), (158, 127060), (316, 63530), (395, 50824), (632, 31765), (790, 25412), (1580, 12706), (3160, 6353)]