20853410

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1277}}^1$

素因数の和:1378

約数の個数: 32

約数和(自身を含む): 39750912

約数和(自身を除く): 18897502

約数列:

[1, 2, 5, 10, 23, 46, 71, 115, 142, 230, 355, 710, 1277, 1633, 2554, 3266, 6385, 8165, 12770, 16330, 29371, 58742, 90667, 146855, 181334, 293710, 453335, 906670, 2085341, 4170682, 10426705, 20853410]

約数ペア:

[(1, 20853410), (2, 10426705), (5, 4170682), (10, 2085341), (23, 906670), (46, 453335), (71, 293710), (115, 181334), (142, 146855), (230, 90667), (355, 58742), (710, 29371), (1277, 16330), (1633, 12770), (2554, 8165), (3266, 6385)]