1991117090

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{6865921}}^1$

素因数の和:6865957

約数の個数: 16

約数和(自身を含む): 3707597880

約数和(自身を除く): 1716480790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 6865921, 13731842, 34329605, 68659210, 199111709, 398223418, 995558545, 1991117090]

約数ペア:

[(1, 1991117090), (2, 995558545), (5, 398223418), (10, 199111709), (29, 68659210), (58, 34329605), (145, 13731842), (290, 6865921)]