2012380

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{421}}^1$

素因数の和:669

約数の個数: 24

約数和(自身を含む): 4253760

約数和(自身を除く): 2241380

約数列:

[1, 2, 4, 5, 10, 20, 239, 421, 478, 842, 956, 1195, 1684, 2105, 2390, 4210, 4780, 8420, 100619, 201238, 402476, 503095, 1006190, 2012380]

約数ペア:

[(1, 2012380), (2, 1006190), (4, 503095), (5, 402476), (10, 201238), (20, 100619), (239, 8420), (421, 4780), (478, 4210), (842, 2390), (956, 2105), (1195, 1684)]