290425856

素因数分解:

$2^{10}\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1307}}^1$

素因数の和:1365

約数の個数: 88

約数和(自身を含む): 685433856

約数和(自身を除く): 395008000

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 256, 434, 448, 496, 512, 868, 896, 992, 1024, 1307, 1736, 1792, 1984, 2614, 3472, 3584, 3968, 5228, 6944, 7168, 7936, 9149, 10456, 13888, 15872, 18298, 20912, 27776, 31744, 36596, 40517, 41824, 55552, 73192, 81034, 83648, 111104, 146384, 162068, 167296, 222208, 283619, 292768, 324136, 334592, 567238, 585536, 648272, 669184, 1134476, 1171072, 1296544, 1338368, 2268952, 2342144, 2593088, 4537904, 4684288, 5186176, 9075808, 9368576, 10372352, 18151616, 20744704, 36303232, 41489408, 72606464, 145212928, 290425856]

約数ペア:

[(1, 290425856), (2, 145212928), (4, 72606464), (7, 41489408), (8, 36303232), (14, 20744704), (16, 18151616), (28, 10372352), (31, 9368576), (32, 9075808), (56, 5186176), (62, 4684288), (64, 4537904), (112, 2593088), (124, 2342144), (128, 2268952), (217, 1338368), (224, 1296544), (248, 1171072), (256, 1134476), (434, 669184), (448, 648272), (496, 585536), (512, 567238), (868, 334592), (896, 324136), (992, 292768), (1024, 283619), (1307, 222208), (1736, 167296), (1792, 162068), (1984, 146384), (2614, 111104), (3472, 83648), (3584, 81034), (3968, 73192), (5228, 55552), (6944, 41824), (7168, 40517), (7936, 36596), (9149, 31744), (10456, 27776), (13888, 20912), (15872, 18298)]