208851115

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{677}}^1$

素因数の和:843

約数の個数: 32

約数和(自身を含む): 281180160

約数和(自身を除く): 72329045

約数列:

[1, 5, 11, 55, 71, 79, 355, 395, 677, 781, 869, 3385, 3905, 4345, 5609, 7447, 28045, 37235, 48067, 53483, 61699, 240335, 267415, 308495, 528737, 588313, 2643685, 2941565, 3797293, 18986465, 41770223, 208851115]

約数ペア:

[(1, 208851115), (5, 41770223), (11, 18986465), (55, 3797293), (71, 2941565), (79, 2643685), (355, 588313), (395, 528737), (677, 308495), (781, 267415), (869, 240335), (3385, 61699), (3905, 53483), (4345, 48067), (5609, 37235), (7447, 28045)]