208458415

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{122263}}^1$

素因数の和:122310

約数の個数: 16

約数和(自身を含む): 281696256

約数和(自身を除く): 73237841

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 122263, 611315, 1344893, 3790153, 6724465, 18950765, 41691683, 208458415]

約数ペア:

[(1, 208458415), (5, 41691683), (11, 18950765), (31, 6724465), (55, 3790153), (155, 1344893), (341, 611315), (1705, 122263)]