1390147215

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2155267}}^1$

素因数の和:2155318

約数の個数: 16

約数和(自身を含む): 2275963008

約数和(自身を除く): 885815793

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 2155267, 6465801, 10776335, 32329005, 92676481, 278029443, 463382405, 1390147215]

約数ペア:

[(1, 1390147215), (3, 463382405), (5, 278029443), (15, 92676481), (43, 32329005), (129, 10776335), (215, 6465801), (645, 2155267)]