86648620

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{48679}}^1$

素因数の和:48777

約数の個数: 24

約数和(自身を含む): 184010400

約数和(自身を除く): 97361780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 48679, 97358, 194716, 243395, 486790, 973580, 4332431, 8664862, 17329724, 21662155, 43324310, 86648620]

約数ペア:

[(1, 86648620), (2, 43324310), (4, 21662155), (5, 17329724), (10, 8664862), (20, 4332431), (89, 973580), (178, 486790), (356, 243395), (445, 194716), (890, 97358), (1780, 48679)]