2020365

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 3931200

約数和(自身を除く): 1910835

約数列:

[1, 3, 5, 9, 15, 17, 19, 45, 51, 57, 85, 95, 139, 153, 171, 255, 285, 323, 417, 695, 765, 855, 969, 1251, 1615, 2085, 2363, 2641, 2907, 4845, 6255, 7089, 7923, 11815, 13205, 14535, 21267, 23769, 35445, 39615, 44897, 106335, 118845, 134691, 224485, 404073, 673455, 2020365]

約数ペア:

[(1, 2020365), (3, 673455), (5, 404073), (9, 224485), (15, 134691), (17, 118845), (19, 106335), (45, 44897), (51, 39615), (57, 35445), (85, 23769), (95, 21267), (139, 14535), (153, 13205), (171, 11815), (255, 7923), (285, 7089), (323, 6255), (417, 4845), (695, 2907), (765, 2641), (855, 2363), (969, 2085), (1251, 1615)]