1609940

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{797}}^1$

素因数の和:907

約数の個数: 24

約数和(自身を含む): 3418632

約数和(自身を除く): 1808692

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 797, 1010, 1594, 2020, 3188, 3985, 7970, 15940, 80497, 160994, 321988, 402485, 804970, 1609940]

約数ペア:

[(1, 1609940), (2, 804970), (4, 402485), (5, 321988), (10, 160994), (20, 80497), (101, 15940), (202, 7970), (404, 3985), (505, 3188), (797, 2020), (1010, 1594)]