20519210

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{66191}}^1$

素因数の和:66229

約数の個数: 16

約数和(自身を含む): 38126592

約数和(自身を除く): 17607382

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 66191, 132382, 330955, 661910, 2051921, 4103842, 10259605, 20519210]

約数ペア:

[(1, 20519210), (2, 10259605), (5, 4103842), (10, 2051921), (31, 661910), (62, 330955), (155, 132382), (310, 66191)]