20285552

素因数分解:

$2^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2551}}^1$

素因数の和:2637

約数の個数: 40

約数和(自身を含む): 45568512

約数和(自身を除く): 25282960

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 71, 112, 142, 284, 497, 568, 994, 1136, 1988, 2551, 3976, 5102, 7952, 10204, 17857, 20408, 35714, 40816, 71428, 142856, 181121, 285712, 362242, 724484, 1267847, 1448968, 2535694, 2897936, 5071388, 10142776, 20285552]

約数ペア:

[(1, 20285552), (2, 10142776), (4, 5071388), (7, 2897936), (8, 2535694), (14, 1448968), (16, 1267847), (28, 724484), (56, 362242), (71, 285712), (112, 181121), (142, 142856), (284, 71428), (497, 40816), (568, 35714), (994, 20408), (1136, 17857), (1988, 10204), (2551, 7952), (3976, 5102)]