84780140

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{19009}}^1$

素因数の和:19241

約数の個数: 24

約数和(自身を含む): 178846080

約数和(自身を除く): 94065940

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 19009, 38018, 76036, 95045, 190090, 380180, 4239007, 8478014, 16956028, 21195035, 42390070, 84780140]

約数ペア:

[(1, 84780140), (2, 42390070), (4, 21195035), (5, 16956028), (10, 8478014), (20, 4239007), (223, 380180), (446, 190090), (892, 95045), (1115, 76036), (2230, 38018), (4460, 19009)]