161904440

素因数分解:

$2^3\times 5^1\times {\mathrm{857}}^1\times {\mathrm{4723}}^1$

素因数の和:5591

約数の個数: 32

約数和(自身を含む): 364787280

約数和(自身を除く): 202882840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 857, 1714, 3428, 4285, 4723, 6856, 8570, 9446, 17140, 18892, 23615, 34280, 37784, 47230, 94460, 188920, 4047611, 8095222, 16190444, 20238055, 32380888, 40476110, 80952220, 161904440]

約数ペア:

[(1, 161904440), (2, 80952220), (4, 40476110), (5, 32380888), (8, 20238055), (10, 16190444), (20, 8095222), (40, 4047611), (857, 188920), (1714, 94460), (3428, 47230), (4285, 37784), (4723, 34280), (6856, 23615), (8570, 18892), (9446, 17140)]