15661253888

素因数分解:

$2^8\times 7^1\times {\mathrm{421}}^1\times {\mathrm{20759}}^1$

素因数の和:21203

約数の個数: 72

約数和(自身を含む): 35813823360

約数和(自身を除く): 20152569472

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 421, 448, 842, 896, 1684, 1792, 2947, 3368, 5894, 6736, 11788, 13472, 20759, 23576, 26944, 41518, 47152, 53888, 83036, 94304, 107776, 145313, 166072, 188608, 290626, 332144, 377216, 581252, 664288, 754432, 1162504, 1328576, 2325008, 2657152, 4650016, 5314304, 8739539, 9300032, 17479078, 18600064, 34958156, 37200128, 61176773, 69916312, 122353546, 139832624, 244707092, 279665248, 489414184, 559330496, 978828368, 1118660992, 1957656736, 2237321984, 3915313472, 7830626944, 15661253888]

約数ペア:

[(1, 15661253888), (2, 7830626944), (4, 3915313472), (7, 2237321984), (8, 1957656736), (14, 1118660992), (16, 978828368), (28, 559330496), (32, 489414184), (56, 279665248), (64, 244707092), (112, 139832624), (128, 122353546), (224, 69916312), (256, 61176773), (421, 37200128), (448, 34958156), (842, 18600064), (896, 17479078), (1684, 9300032), (1792, 8739539), (2947, 5314304), (3368, 4650016), (5894, 2657152), (6736, 2325008), (11788, 1328576), (13472, 1162504), (20759, 754432), (23576, 664288), (26944, 581252), (41518, 377216), (47152, 332144), (53888, 290626), (83036, 188608), (94304, 166072), (107776, 145313)]