208032705

素因数分解:

$3^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4987}}^1$

素因数の和:5107

約数の個数: 40

約数和(自身を含む): 376613952

約数和(自身を除く): 168581247

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 103, 135, 309, 405, 515, 927, 1545, 2781, 4635, 4987, 8343, 13905, 14961, 24935, 41715, 44883, 74805, 134649, 224415, 403947, 513661, 673245, 1540983, 2019735, 2568305, 4622949, 7704915, 13868847, 23114745, 41606541, 69344235, 208032705]

約数ペア:

[(1, 208032705), (3, 69344235), (5, 41606541), (9, 23114745), (15, 13868847), (27, 7704915), (45, 4622949), (81, 2568305), (103, 2019735), (135, 1540983), (309, 673245), (405, 513661), (515, 403947), (927, 224415), (1545, 134649), (2781, 74805), (4635, 44883), (4987, 41715), (8343, 24935), (13905, 14961)]