199972435

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{161921}}^1$

素因数の和:161958

約数の個数: 16

約数和(自身を含む): 272028960

約数和(自身を除く): 72056525

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 161921, 809605, 2104973, 3076499, 10524865, 15382495, 39994487, 199972435]

約数ペア:

[(1, 199972435), (5, 39994487), (13, 15382495), (19, 10524865), (65, 3076499), (95, 2104973), (247, 809605), (1235, 161921)]