1561240

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1697}}^1$

素因数の和:1731

約数の個数: 32

約数和(自身を含む): 3667680

約数和(自身を除く): 2106440

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 1697, 3394, 6788, 8485, 13576, 16970, 33940, 39031, 67880, 78062, 156124, 195155, 312248, 390310, 780620, 1561240]

約数ペア:

[(1, 1561240), (2, 780620), (4, 390310), (5, 312248), (8, 195155), (10, 156124), (20, 78062), (23, 67880), (40, 39031), (46, 33940), (92, 16970), (115, 13576), (184, 8485), (230, 6788), (460, 3394), (920, 1697)]