19738480

素因数分解:

$2^4\times 5^1\times {\mathrm{246731}}^1$

素因数の和:246744

約数の個数: 20

約数和(自身を含む): 45892152

約数和(自身を除く): 26153672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 246731, 493462, 986924, 1233655, 1973848, 2467310, 3947696, 4934620, 9869240, 19738480]

約数ペア:

[(1, 19738480), (2, 9869240), (4, 4934620), (5, 3947696), (8, 2467310), (10, 1973848), (16, 1233655), (20, 986924), (40, 493462), (80, 246731)]