42878540

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{21227}}^1$

素因数の和:21337

約数の個数: 24

約数和(自身を含む): 90940752

約数和(自身を除く): 48062212

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 21227, 42454, 84908, 106135, 212270, 424540, 2143927, 4287854, 8575708, 10719635, 21439270, 42878540]

約数ペア:

[(1, 42878540), (2, 21439270), (4, 10719635), (5, 8575708), (10, 4287854), (20, 2143927), (101, 424540), (202, 212270), (404, 106135), (505, 84908), (1010, 42454), (2020, 21227)]