42194725

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{421}}^1$

素因数の和:661

約数の個数: 24

約数和(自身を含む): 55467680

約数和(自身を除く): 13272955

約数列:

[1, 5, 19, 25, 95, 211, 421, 475, 1055, 2105, 4009, 5275, 7999, 10525, 20045, 39995, 88831, 100225, 199975, 444155, 1687789, 2220775, 8438945, 42194725]

約数ペア:

[(1, 42194725), (5, 8438945), (19, 2220775), (25, 1687789), (95, 444155), (211, 199975), (421, 100225), (475, 88831), (1055, 39995), (2105, 20045), (4009, 10525), (5275, 7999)]