66855555

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 128466000

約数和(自身を除く): 61610445

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 59, 65, 117, 149, 169, 177, 195, 295, 447, 507, 531, 585, 745, 767, 845, 885, 1341, 1521, 1937, 2235, 2301, 2535, 2655, 3835, 5811, 6705, 6903, 7605, 8791, 9685, 9971, 11505, 17433, 25181, 26373, 29055, 29913, 34515, 43955, 49855, 75543, 79119, 87165, 89739, 114283, 125905, 131865, 149565, 226629, 342849, 377715, 395595, 448695, 571415, 1028547, 1133145, 1485679, 1714245, 4457037, 5142735, 7428395, 13371111, 22285185, 66855555]

約数ペア:

[(1, 66855555), (3, 22285185), (5, 13371111), (9, 7428395), (13, 5142735), (15, 4457037), (39, 1714245), (45, 1485679), (59, 1133145), (65, 1028547), (117, 571415), (149, 448695), (169, 395595), (177, 377715), (195, 342849), (295, 226629), (447, 149565), (507, 131865), (531, 125905), (585, 114283), (745, 89739), (767, 87165), (845, 79119), (885, 75543), (1341, 49855), (1521, 43955), (1937, 34515), (2235, 29913), (2301, 29055), (2535, 26373), (2655, 25181), (3835, 17433), (5811, 11505), (6705, 9971), (6903, 9685), (7605, 8791)]