20474704

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1433}}^1$

素因数の和:1507

約数の個数: 40

約数和(自身を含む): 42675840

約数和(自身を除く): 22201136

約数列:

[1, 2, 4, 8, 16, 19, 38, 47, 76, 94, 152, 188, 304, 376, 752, 893, 1433, 1786, 2866, 3572, 5732, 7144, 11464, 14288, 22928, 27227, 54454, 67351, 108908, 134702, 217816, 269404, 435632, 538808, 1077616, 1279669, 2559338, 5118676, 10237352, 20474704]

約数ペア:

[(1, 20474704), (2, 10237352), (4, 5118676), (8, 2559338), (16, 1279669), (19, 1077616), (38, 538808), (47, 435632), (76, 269404), (94, 217816), (152, 134702), (188, 108908), (304, 67351), (376, 54454), (752, 27227), (893, 22928), (1433, 14288), (1786, 11464), (2866, 7144), (3572, 5732)]