1281196090

素因数分解:

$2^1\times 5^1\times {\mathrm{16763}}^1\times {\mathrm{7643}}^1$

素因数の和:24413

約数の個数: 16

約数和(自身を含む): 2306592288

約数和(自身を除く): 1025396198

約数列:

[1, 2, 5, 10, 7643, 15286, 16763, 33526, 38215, 76430, 83815, 167630, 128119609, 256239218, 640598045, 1281196090]

約数ペア:

[(1, 1281196090), (2, 640598045), (5, 256239218), (10, 128119609), (7643, 167630), (15286, 83815), (16763, 76430), (33526, 38215)]