4280020

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1237}}^1$

素因数の和:1419

約数の個数: 24

約数和(自身を含む): 9047304

約数和(自身を除く): 4767284

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1237, 1730, 2474, 3460, 4948, 6185, 12370, 24740, 214001, 428002, 856004, 1070005, 2140010, 4280020]

約数ペア:

[(1, 4280020), (2, 2140010), (4, 1070005), (5, 856004), (10, 428002), (20, 214001), (173, 24740), (346, 12370), (692, 6185), (865, 4948), (1237, 3460), (1730, 2474)]