25649320

素因数分解:

$2^3\times 5^1\times {\mathrm{571}}^1\times {\mathrm{1123}}^1$

素因数の和:1705

約数の個数: 32

約数和(自身を含む): 57863520

約数和(自身を除く): 32214200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 571, 1123, 1142, 2246, 2284, 2855, 4492, 4568, 5615, 5710, 8984, 11230, 11420, 22460, 22840, 44920, 641233, 1282466, 2564932, 3206165, 5129864, 6412330, 12824660, 25649320]

約数ペア:

[(1, 25649320), (2, 12824660), (4, 6412330), (5, 5129864), (8, 3206165), (10, 2564932), (20, 1282466), (40, 641233), (571, 44920), (1123, 22840), (1142, 22460), (2246, 11420), (2284, 11230), (2855, 8984), (4492, 5710), (4568, 5615)]