20731228

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{449}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 44452800

約数和(自身を除く): 23721572

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 97, 119, 194, 238, 388, 449, 476, 679, 898, 1358, 1649, 1796, 2716, 3143, 3298, 6286, 6596, 7633, 11543, 12572, 15266, 23086, 30532, 43553, 46172, 53431, 87106, 106862, 174212, 213724, 304871, 609742, 740401, 1219484, 1480802, 2961604, 5182807, 10365614, 20731228]

約数ペア:

[(1, 20731228), (2, 10365614), (4, 5182807), (7, 2961604), (14, 1480802), (17, 1219484), (28, 740401), (34, 609742), (68, 304871), (97, 213724), (119, 174212), (194, 106862), (238, 87106), (388, 53431), (449, 46172), (476, 43553), (679, 30532), (898, 23086), (1358, 15266), (1649, 12572), (1796, 11543), (2716, 7633), (3143, 6596), (3298, 6286)]