489690860

素因数分解:

$2^2\times 5^1\times {\mathrm{3191}}^1\times {\mathrm{7673}}^1$

素因数の和:10873

約数の個数: 24

約数和(自身を含む): 1028807136

約数和(自身を除く): 539116276

約数列:

[1, 2, 4, 5, 10, 20, 3191, 6382, 7673, 12764, 15346, 15955, 30692, 31910, 38365, 63820, 76730, 153460, 24484543, 48969086, 97938172, 122422715, 244845430, 489690860]

約数ペア:

[(1, 489690860), (2, 244845430), (4, 122422715), (5, 97938172), (10, 48969086), (20, 24484543), (3191, 153460), (6382, 76730), (7673, 63820), (12764, 38365), (15346, 31910), (15955, 30692)]