663669905

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{211}}^1\times {\mathrm{293}}^1$

素因数の和:641

約数の個数: 32

約数和(自身を含む): 852647040

約数和(自身を除く): 188977135

約数列:

[1, 5, 19, 95, 113, 211, 293, 565, 1055, 1465, 2147, 4009, 5567, 10735, 20045, 23843, 27835, 33109, 61823, 119215, 165545, 309115, 453017, 629071, 1174637, 2265085, 3145355, 5873185, 6985999, 34929995, 132733981, 663669905]

約数ペア:

[(1, 663669905), (5, 132733981), (19, 34929995), (95, 6985999), (113, 5873185), (211, 3145355), (293, 2265085), (565, 1174637), (1055, 629071), (1465, 453017), (2147, 309115), (4009, 165545), (5567, 119215), (10735, 61823), (20045, 33109), (23843, 27835)]