27720448

素因数分解:

$2^8\times 7^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:553

約数の個数: 72

約数和(自身を含む): 65408000

約数和(自身を除く): 37687552

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, 499, 868, 896, 992, 998, 1736, 1792, 1984, 1996, 3472, 3493, 3968, 3992, 6944, 6986, 7936, 7984, 13888, 13972, 15469, 15968, 27776, 27944, 30938, 31936, 55552, 55888, 61876, 63872, 108283, 111776, 123752, 127744, 216566, 223552, 247504, 433132, 447104, 495008, 866264, 894208, 990016, 1732528, 1980032, 3465056, 3960064, 6930112, 13860224, 27720448]

約数ペア:

[(1, 27720448), (2, 13860224), (4, 6930112), (7, 3960064), (8, 3465056), (14, 1980032), (16, 1732528), (28, 990016), (31, 894208), (32, 866264), (56, 495008), (62, 447104), (64, 433132), (112, 247504), (124, 223552), (128, 216566), (217, 127744), (224, 123752), (248, 111776), (256, 108283), (434, 63872), (448, 61876), (496, 55888), (499, 55552), (868, 31936), (896, 30938), (992, 27944), (998, 27776), (1736, 15968), (1792, 15469), (1984, 13972), (1996, 13888), (3472, 7984), (3493, 7936), (3968, 6986), (3992, 6944)]