220987648

素因数分解:

$2^8\times 7^2\times {\mathrm{79}}^1\times {\mathrm{223}}^1$

素因数の和:332

約数の個数: 108

約数和(自身を含む): 521955840

約数和(自身を除く): 300968192

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 79, 98, 112, 128, 158, 196, 223, 224, 256, 316, 392, 446, 448, 553, 632, 784, 892, 896, 1106, 1264, 1561, 1568, 1784, 1792, 2212, 2528, 3122, 3136, 3568, 3871, 4424, 5056, 6244, 6272, 7136, 7742, 8848, 10112, 10927, 12488, 12544, 14272, 15484, 17617, 17696, 20224, 21854, 24976, 28544, 30968, 35234, 35392, 43708, 49952, 57088, 61936, 70468, 70784, 87416, 99904, 123319, 123872, 140936, 141568, 174832, 199808, 246638, 247744, 281872, 349664, 399616, 493276, 495488, 563744, 699328, 863233, 986552, 990976, 1127488, 1398656, 1726466, 1973104, 2254976, 2797312, 3452932, 3946208, 4509952, 6905864, 7892416, 13811728, 15784832, 27623456, 31569664, 55246912, 110493824, 220987648]

約数ペア:

[(1, 220987648), (2, 110493824), (4, 55246912), (7, 31569664), (8, 27623456), (14, 15784832), (16, 13811728), (28, 7892416), (32, 6905864), (49, 4509952), (56, 3946208), (64, 3452932), (79, 2797312), (98, 2254976), (112, 1973104), (128, 1726466), (158, 1398656), (196, 1127488), (223, 990976), (224, 986552), (256, 863233), (316, 699328), (392, 563744), (446, 495488), (448, 493276), (553, 399616), (632, 349664), (784, 281872), (892, 247744), (896, 246638), (1106, 199808), (1264, 174832), (1561, 141568), (1568, 140936), (1784, 123872), (1792, 123319), (2212, 99904), (2528, 87416), (3122, 70784), (3136, 70468), (3568, 61936), (3871, 57088), (4424, 49952), (5056, 43708), (6244, 35392), (6272, 35234), (7136, 30968), (7742, 28544), (8848, 24976), (10112, 21854), (10927, 20224), (12488, 17696), (12544, 17617), (14272, 15484)]