261229920

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{77747}}^1$

素因数の和:77772

約数の個数: 96

約数和(自身を含む): 940439808

約数和(自身を除く): 679209888

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 210, 224, 240, 280, 336, 420, 480, 560, 672, 840, 1120, 1680, 3360, 77747, 155494, 233241, 310988, 388735, 466482, 544229, 621976, 777470, 932964, 1088458, 1166205, 1243952, 1554940, 1632687, 1865928, 2176916, 2332410, 2487904, 2721145, 3109880, 3265374, 3731856, 4353832, 4664820, 5442290, 6219760, 6530748, 7463712, 8163435, 8707664, 9329640, 10884580, 12439520, 13061496, 16326870, 17415328, 18659280, 21769160, 26122992, 32653740, 37318560, 43538320, 52245984, 65307480, 87076640, 130614960, 261229920]

約数ペア:

[(1, 261229920), (2, 130614960), (3, 87076640), (4, 65307480), (5, 52245984), (6, 43538320), (7, 37318560), (8, 32653740), (10, 26122992), (12, 21769160), (14, 18659280), (15, 17415328), (16, 16326870), (20, 13061496), (21, 12439520), (24, 10884580), (28, 9329640), (30, 8707664), (32, 8163435), (35, 7463712), (40, 6530748), (42, 6219760), (48, 5442290), (56, 4664820), (60, 4353832), (70, 3731856), (80, 3265374), (84, 3109880), (96, 2721145), (105, 2487904), (112, 2332410), (120, 2176916), (140, 1865928), (160, 1632687), (168, 1554940), (210, 1243952), (224, 1166205), (240, 1088458), (280, 932964), (336, 777470), (420, 621976), (480, 544229), (560, 466482), (672, 388735), (840, 310988), (1120, 233241), (1680, 155494), (3360, 77747)]