20147635

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{73}}^1\times {\mathrm{191}}^1$

素因数の和:303

約数の個数: 24

約数和(自身を含む): 26171136

約数和(自身を除く): 6023501

約数列:

[1, 5, 17, 73, 85, 191, 289, 365, 955, 1241, 1445, 3247, 6205, 13943, 16235, 21097, 55199, 69715, 105485, 237031, 275995, 1185155, 4029527, 20147635]

約数ペア:

[(1, 20147635), (5, 4029527), (17, 1185155), (73, 275995), (85, 237031), (191, 105485), (289, 69715), (365, 55199), (955, 21097), (1241, 16235), (1445, 13943), (3247, 6205)]