208264985

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{509}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 271728000

約数和(自身を除く): 63463015

約数列:

[1, 5, 19, 59, 73, 95, 295, 365, 509, 1121, 1387, 2545, 4307, 5605, 6935, 9671, 21535, 30031, 37157, 48355, 81833, 150155, 185785, 409165, 570589, 705983, 2192263, 2852945, 3529915, 10961315, 41652997, 208264985]

約数ペア:

[(1, 208264985), (5, 41652997), (19, 10961315), (59, 3529915), (73, 2852945), (95, 2192263), (295, 705983), (365, 570589), (509, 409165), (1121, 185785), (1387, 150155), (2545, 81833), (4307, 48355), (5605, 37157), (6935, 30031), (9671, 21535)]