205319218

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{401}}^1\times {\mathrm{419}}^1$

素因数の和:882

約数の個数: 32

約数和(自身を含む): 340381440

約数和(自身を除く): 135062222

約数列:

[1, 2, 13, 26, 47, 94, 401, 419, 611, 802, 838, 1222, 5213, 5447, 10426, 10894, 18847, 19693, 37694, 39386, 168019, 245011, 256009, 336038, 490022, 512018, 2184247, 4368494, 7896893, 15793786, 102659609, 205319218]

約数ペア:

[(1, 205319218), (2, 102659609), (13, 15793786), (26, 7896893), (47, 4368494), (94, 2184247), (401, 512018), (419, 490022), (611, 336038), (802, 256009), (838, 245011), (1222, 168019), (5213, 39386), (5447, 37694), (10426, 19693), (10894, 18847)]