994979975

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{328919}}^1$

素因数の和:328951

約数の個数: 18

約数和(自身を含む): 1356137160

約数和(自身を除く): 361157185

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 328919, 1644595, 3618109, 8222975, 18090545, 39799199, 90452725, 198995995, 994979975]

約数ペア:

[(1, 994979975), (5, 198995995), (11, 90452725), (25, 39799199), (55, 18090545), (121, 8222975), (275, 3618109), (605, 1644595), (3025, 328919)]