198330820

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{127}}^1\times {\mathrm{691}}^1$

素因数の和:940

約数の個数: 48

約数和(自身を含む): 424101888

約数和(自身を除く): 225771068

約数列:

[1, 2, 4, 5, 10, 20, 113, 127, 226, 254, 452, 508, 565, 635, 691, 1130, 1270, 1382, 2260, 2540, 2764, 3455, 6910, 13820, 14351, 28702, 57404, 71755, 78083, 87757, 143510, 156166, 175514, 287020, 312332, 351028, 390415, 438785, 780830, 877570, 1561660, 1755140, 9916541, 19833082, 39666164, 49582705, 99165410, 198330820]

約数ペア:

[(1, 198330820), (2, 99165410), (4, 49582705), (5, 39666164), (10, 19833082), (20, 9916541), (113, 1755140), (127, 1561660), (226, 877570), (254, 780830), (452, 438785), (508, 390415), (565, 351028), (635, 312332), (691, 287020), (1130, 175514), (1270, 156166), (1382, 143510), (2260, 87757), (2540, 78083), (2764, 71755), (3455, 57404), (6910, 28702), (13820, 14351)]