1640283904

素因数分解:

$2^8\times 7^1\times {\mathrm{31}}^1\times {\mathrm{29527}}^1$

素因数の和:29581

約数の個数: 72

約数和(自身を含む): 3862734848

約数和(自身を除く): 2222450944

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, 868, 896, 992, 1736, 1792, 1984, 3472, 3968, 6944, 7936, 13888, 27776, 29527, 55552, 59054, 118108, 206689, 236216, 413378, 472432, 826756, 915337, 944864, 1653512, 1830674, 1889728, 3307024, 3661348, 3779456, 6407359, 6614048, 7322696, 7558912, 12814718, 13228096, 14645392, 25629436, 26456192, 29290784, 51258872, 52912384, 58581568, 102517744, 117163136, 205035488, 234326272, 410070976, 820141952, 1640283904]

約数ペア:

[(1, 1640283904), (2, 820141952), (4, 410070976), (7, 234326272), (8, 205035488), (14, 117163136), (16, 102517744), (28, 58581568), (31, 52912384), (32, 51258872), (56, 29290784), (62, 26456192), (64, 25629436), (112, 14645392), (124, 13228096), (128, 12814718), (217, 7558912), (224, 7322696), (248, 6614048), (256, 6407359), (434, 3779456), (448, 3661348), (496, 3307024), (868, 1889728), (896, 1830674), (992, 1653512), (1736, 944864), (1792, 915337), (1984, 826756), (3472, 472432), (3968, 413378), (6944, 236216), (7936, 206689), (13888, 118108), (27776, 59054), (29527, 55552)]