13123480

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4153}}^1$

素因数の和:4243

約数の個数: 32

約数和(自身を含む): 29908800

約数和(自身を除く): 16785320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 4153, 8306, 16612, 20765, 33224, 41530, 83060, 166120, 328087, 656174, 1312348, 1640435, 2624696, 3280870, 6561740, 13123480]

約数ペア:

[(1, 13123480), (2, 6561740), (4, 3280870), (5, 2624696), (8, 1640435), (10, 1312348), (20, 656174), (40, 328087), (79, 166120), (158, 83060), (316, 41530), (395, 33224), (632, 20765), (790, 16612), (1580, 8306), (3160, 4153)]