210902185

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{439}}^1$

素因数の和:865

約数の個数: 32

約数和(自身を含む): 288288000

約数和(自身を除く): 77385815

約数列:

[1, 5, 13, 19, 65, 95, 247, 389, 439, 1235, 1945, 2195, 5057, 5707, 7391, 8341, 25285, 28535, 36955, 41705, 96083, 108433, 170771, 480415, 542165, 853855, 2220023, 3244649, 11100115, 16223245, 42180437, 210902185]

約数ペア:

[(1, 210902185), (5, 42180437), (13, 16223245), (19, 11100115), (65, 3244649), (95, 2220023), (247, 853855), (389, 542165), (439, 480415), (1235, 170771), (1945, 108433), (2195, 96083), (5057, 41705), (5707, 36955), (7391, 28535), (8341, 25285)]