128475730

素因数分解:

$2^1\times 5^1\times {\mathrm{1999}}^1\times {\mathrm{6427}}^1$

素因数の和:8433

約数の個数: 16

約数和(自身を含む): 231408000

約数和(自身を除く): 102932270

約数列:

[1, 2, 5, 10, 1999, 3998, 6427, 9995, 12854, 19990, 32135, 64270, 12847573, 25695146, 64237865, 128475730]

約数ペア:

[(1, 128475730), (2, 64237865), (5, 25695146), (10, 12847573), (1999, 64270), (3998, 32135), (6427, 19990), (9995, 12854)]