20587565

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1\times {\mathrm{419}}^1$

素因数の和:772

約数の個数: 16

約数和(自身を含む): 25643520

約数和(自身を除く): 5055955

約数列:

[1, 5, 31, 155, 317, 419, 1585, 2095, 9827, 12989, 49135, 64945, 132823, 664115, 4117513, 20587565]

約数ペア:

[(1, 20587565), (5, 4117513), (31, 664115), (155, 132823), (317, 64945), (419, 49135), (1585, 12989), (2095, 9827)]