2098420

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{439}}^1$

素因数の和:687

約数の個数: 24

約数和(自身を含む): 4435200

約数和(自身を除く): 2336780

約数列:

[1, 2, 4, 5, 10, 20, 239, 439, 478, 878, 956, 1195, 1756, 2195, 2390, 4390, 4780, 8780, 104921, 209842, 419684, 524605, 1049210, 2098420]

約数ペア:

[(1, 2098420), (2, 1049210), (4, 524605), (5, 419684), (10, 209842), (20, 104921), (239, 8780), (439, 4780), (478, 4390), (878, 2390), (956, 2195), (1195, 1756)]