20681410

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{557}}^1$

素因数の和:690

約数の個数: 32

約数和(自身を含む): 38568960

約数和(自身を除く): 17887550

約数列:

[1, 2, 5, 10, 47, 79, 94, 158, 235, 395, 470, 557, 790, 1114, 2785, 3713, 5570, 7426, 18565, 26179, 37130, 44003, 52358, 88006, 130895, 220015, 261790, 440030, 2068141, 4136282, 10340705, 20681410]

約数ペア:

[(1, 20681410), (2, 10340705), (5, 4136282), (10, 2068141), (47, 440030), (79, 261790), (94, 220015), (158, 130895), (235, 88006), (395, 52358), (470, 44003), (557, 37130), (790, 26179), (1114, 18565), (2785, 7426), (3713, 5570)]