90109210

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{109}}^1\times {\mathrm{229}}^1$

素因数の和:383

約数の個数: 48

約数和(自身を含む): 173507400

約数和(自身を除く): 83398190

約数列:

[1, 2, 5, 10, 19, 38, 95, 109, 190, 218, 229, 361, 458, 545, 722, 1090, 1145, 1805, 2071, 2290, 3610, 4142, 4351, 8702, 10355, 20710, 21755, 24961, 39349, 43510, 49922, 78698, 82669, 124805, 165338, 196745, 249610, 393490, 413345, 474259, 826690, 948518, 2371295, 4742590, 9010921, 18021842, 45054605, 90109210]

約数ペア:

[(1, 90109210), (2, 45054605), (5, 18021842), (10, 9010921), (19, 4742590), (38, 2371295), (95, 948518), (109, 826690), (190, 474259), (218, 413345), (229, 393490), (361, 249610), (458, 196745), (545, 165338), (722, 124805), (1090, 82669), (1145, 78698), (1805, 49922), (2071, 43510), (2290, 39349), (3610, 24961), (4142, 21755), (4351, 20710), (8702, 10355)]