20189845

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{811}}^1$

素因数の和:1212

約数の個数: 16

約数和(自身を含む): 26191872

約数和(自身を除く): 6002027

約数列:

[1, 5, 13, 65, 383, 811, 1915, 4055, 4979, 10543, 24895, 52715, 310613, 1553065, 4037969, 20189845]

約数ペア:

[(1, 20189845), (5, 4037969), (13, 1553065), (65, 310613), (383, 52715), (811, 24895), (1915, 10543), (4055, 4979)]