31148560

素因数分解:

$2^4\times 5^1\times {\mathrm{389357}}^1$

素因数の和:389370

約数の個数: 20

約数和(自身を含む): 72420588

約数和(自身を除く): 41272028

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389357, 778714, 1557428, 1946785, 3114856, 3893570, 6229712, 7787140, 15574280, 31148560]

約数ペア:

[(1, 31148560), (2, 15574280), (4, 7787140), (5, 6229712), (8, 3893570), (10, 3114856), (16, 1946785), (20, 1557428), (40, 778714), (80, 389357)]