206091255

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^2\times {\mathrm{31}}^2$

素因数の和:145

約数の個数: 72

約数和(自身を含む): 373638096

約数和(自身を除く): 167546841

約数列:

[1, 3, 5, 15, 17, 29, 31, 51, 85, 87, 93, 145, 155, 255, 435, 465, 493, 527, 841, 899, 961, 1479, 1581, 2465, 2523, 2635, 2697, 2883, 4205, 4495, 4805, 7395, 7905, 12615, 13485, 14297, 14415, 15283, 16337, 26071, 27869, 42891, 45849, 49011, 71485, 76415, 78213, 81685, 83607, 130355, 139345, 214455, 229245, 245055, 391065, 418035, 443207, 473773, 808201, 1329621, 1421319, 2216035, 2368865, 2424603, 4041005, 6648105, 7106595, 12123015, 13739417, 41218251, 68697085, 206091255]

約数ペア:

[(1, 206091255), (3, 68697085), (5, 41218251), (15, 13739417), (17, 12123015), (29, 7106595), (31, 6648105), (51, 4041005), (85, 2424603), (87, 2368865), (93, 2216035), (145, 1421319), (155, 1329621), (255, 808201), (435, 473773), (465, 443207), (493, 418035), (527, 391065), (841, 245055), (899, 229245), (961, 214455), (1479, 139345), (1581, 130355), (2465, 83607), (2523, 81685), (2635, 78213), (2697, 76415), (2883, 71485), (4205, 49011), (4495, 45849), (4805, 42891), (7395, 27869), (7905, 26071), (12615, 16337), (13485, 15283), (14297, 14415)]