199974905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{161923}}^1$

素因数の和:161960

約数の個数: 16

約数和(自身を含む): 272032320

約数和(自身を除く): 72057415

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 161923, 809615, 2104999, 3076537, 10524995, 15382685, 39994981, 199974905]

約数ペア:

[(1, 199974905), (5, 39994981), (13, 15382685), (19, 10524995), (65, 3076537), (95, 2104999), (247, 809615), (1235, 161923)]