19960590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:194

約数の個数: 96

約数和(自身を含む): 53968896

約数和(自身を除く): 34008306

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 31, 39, 62, 65, 78, 93, 127, 130, 155, 169, 186, 195, 254, 310, 338, 381, 390, 403, 465, 507, 635, 762, 806, 845, 930, 1014, 1209, 1270, 1651, 1690, 1905, 2015, 2418, 2535, 3302, 3810, 3937, 4030, 4953, 5070, 5239, 6045, 7874, 8255, 9906, 10478, 11811, 12090, 15717, 16510, 19685, 21463, 23622, 24765, 26195, 31434, 39370, 42926, 49530, 51181, 52390, 59055, 64389, 78585, 102362, 107315, 118110, 128778, 153543, 157170, 214630, 255905, 307086, 321945, 511810, 643890, 665353, 767715, 1330706, 1535430, 1996059, 3326765, 3992118, 6653530, 9980295, 19960590]

約数ペア:

[(1, 19960590), (2, 9980295), (3, 6653530), (5, 3992118), (6, 3326765), (10, 1996059), (13, 1535430), (15, 1330706), (26, 767715), (30, 665353), (31, 643890), (39, 511810), (62, 321945), (65, 307086), (78, 255905), (93, 214630), (127, 157170), (130, 153543), (155, 128778), (169, 118110), (186, 107315), (195, 102362), (254, 78585), (310, 64389), (338, 59055), (381, 52390), (390, 51181), (403, 49530), (465, 42926), (507, 39370), (635, 31434), (762, 26195), (806, 24765), (845, 23622), (930, 21463), (1014, 19685), (1209, 16510), (1270, 15717), (1651, 12090), (1690, 11811), (1905, 10478), (2015, 9906), (2418, 8255), (2535, 7874), (3302, 6045), (3810, 5239), (3937, 5070), (4030, 4953)]