20040378478

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{821}}^1\times {\mathrm{642361}}^1$

素因数の和:643203

約数の個数: 16

約数和(自身を含む): 31681293840

約数和(自身を除く): 11640915362

約数列:

[1, 2, 19, 38, 821, 1642, 15599, 31198, 642361, 1284722, 12204859, 24409718, 527378381, 1054756762, 10020189239, 20040378478]

約数ペア:

[(1, 20040378478), (2, 10020189239), (19, 1054756762), (38, 527378381), (821, 24409718), (1642, 12204859), (15599, 1284722), (31198, 642361)]