20565543160

素因数分解:

$2^3\times 5^1\times {\mathrm{51719}}^1\times {\mathrm{9941}}^1$

素因数の和:61671

約数の個数: 32

約数和(自身を含む): 46278021600

約数和(自身を除く): 25712478440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9941, 19882, 39764, 49705, 51719, 79528, 99410, 103438, 198820, 206876, 258595, 397640, 413752, 517190, 1034380, 2068760, 514138579, 1028277158, 2056554316, 2570692895, 4113108632, 5141385790, 10282771580, 20565543160]

約数ペア:

[(1, 20565543160), (2, 10282771580), (4, 5141385790), (5, 4113108632), (8, 2570692895), (10, 2056554316), (20, 1028277158), (40, 514138579), (9941, 2068760), (19882, 1034380), (39764, 517190), (49705, 413752), (51719, 397640), (79528, 258595), (99410, 206876), (103438, 198820)]