20509969210

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{66161191}}^1$

素因数の和:66161229

約数の個数: 16

約数和(自身を含む): 38108846592

約数和(自身を除く): 17598877382

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 66161191, 132322382, 330805955, 661611910, 2050996921, 4101993842, 10254984605, 20509969210]

約数ペア:

[(1, 20509969210), (2, 10254984605), (5, 4101993842), (10, 2050996921), (31, 661611910), (62, 330805955), (155, 132322382), (310, 66161191)]