4080490640

素因数分解:

$2^4\times 5^1\times {\mathrm{5471}}^1\times {\mathrm{9323}}^1$

素因数の和:14807

約数の個数: 40

約数和(自身を含む): 9489892608

約数和(自身を除く): 5409401968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5471, 9323, 10942, 18646, 21884, 27355, 37292, 43768, 46615, 54710, 74584, 87536, 93230, 109420, 149168, 186460, 218840, 372920, 437680, 745840, 51006133, 102012266, 204024532, 255030665, 408049064, 510061330, 816098128, 1020122660, 2040245320, 4080490640]

約数ペア:

[(1, 4080490640), (2, 2040245320), (4, 1020122660), (5, 816098128), (8, 510061330), (10, 408049064), (16, 255030665), (20, 204024532), (40, 102012266), (80, 51006133), (5471, 745840), (9323, 437680), (10942, 372920), (18646, 218840), (21884, 186460), (27355, 149168), (37292, 109420), (43768, 93230), (46615, 87536), (54710, 74584)]