18162890

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{277}}^1$

素因数の和:446

約数の個数: 32

約数和(自身を含む): 33626880

約数和(自身を除く): 15463990

約数列:

[1, 2, 5, 10, 79, 83, 158, 166, 277, 395, 415, 554, 790, 830, 1385, 2770, 6557, 13114, 21883, 22991, 32785, 43766, 45982, 65570, 109415, 114955, 218830, 229910, 1816289, 3632578, 9081445, 18162890]

約数ペア:

[(1, 18162890), (2, 9081445), (5, 3632578), (10, 1816289), (79, 229910), (83, 218830), (158, 114955), (166, 109415), (277, 65570), (395, 45982), (415, 43766), (554, 32785), (790, 22991), (830, 21883), (1385, 13114), (2770, 6557)]