25709851984

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{229}}^1\times {\mathrm{461}}^1\times {\mathrm{491}}^1$

素因数の和:1220

約数の個数: 80

約数和(自身を含む): 51861680640

約数和(自身を除く): 26151828656

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 229, 248, 458, 461, 491, 496, 916, 922, 982, 1832, 1844, 1964, 3664, 3688, 3928, 7099, 7376, 7856, 14198, 14291, 15221, 28396, 28582, 30442, 56792, 57164, 60884, 105569, 112439, 113584, 114328, 121768, 211138, 224878, 226351, 228656, 243536, 422276, 449756, 452702, 844552, 899512, 905404, 1689104, 1799024, 1810808, 3272639, 3485609, 3621616, 6545278, 6971218, 7016881, 13090556, 13942436, 14033762, 26181112, 27884872, 28067524, 51834379, 52362224, 55769744, 56135048, 103668758, 112270096, 207337516, 414675032, 829350064, 1606865749, 3213731498, 6427462996, 12854925992, 25709851984]

約数ペア:

[(1, 25709851984), (2, 12854925992), (4, 6427462996), (8, 3213731498), (16, 1606865749), (31, 829350064), (62, 414675032), (124, 207337516), (229, 112270096), (248, 103668758), (458, 56135048), (461, 55769744), (491, 52362224), (496, 51834379), (916, 28067524), (922, 27884872), (982, 26181112), (1832, 14033762), (1844, 13942436), (1964, 13090556), (3664, 7016881), (3688, 6971218), (3928, 6545278), (7099, 3621616), (7376, 3485609), (7856, 3272639), (14198, 1810808), (14291, 1799024), (15221, 1689104), (28396, 905404), (28582, 899512), (30442, 844552), (56792, 452702), (57164, 449756), (60884, 422276), (105569, 243536), (112439, 228656), (113584, 226351), (114328, 224878), (121768, 211138)]