20568128

素因数分解:

$2^6\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1481}}^1$

素因数の和:1531

約数の個数: 56

約数和(自身を含む): 48182784

約数和(自身を除く): 27614656

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 217, 224, 248, 434, 448, 496, 868, 992, 1481, 1736, 1984, 2962, 3472, 5924, 6944, 10367, 11848, 13888, 20734, 23696, 41468, 45911, 47392, 82936, 91822, 94784, 165872, 183644, 321377, 331744, 367288, 642754, 663488, 734576, 1285508, 1469152, 2571016, 2938304, 5142032, 10284064, 20568128]

約数ペア:

[(1, 20568128), (2, 10284064), (4, 5142032), (7, 2938304), (8, 2571016), (14, 1469152), (16, 1285508), (28, 734576), (31, 663488), (32, 642754), (56, 367288), (62, 331744), (64, 321377), (112, 183644), (124, 165872), (217, 94784), (224, 91822), (248, 82936), (434, 47392), (448, 45911), (496, 41468), (868, 23696), (992, 20734), (1481, 13888), (1736, 11848), (1984, 10367), (2962, 6944), (3472, 5924)]