258193195

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^2\times {\mathrm{139}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 364724640

約数和(自身を除く): 106531445

約数列:

[1, 5, 13, 17, 41, 65, 85, 139, 205, 221, 533, 695, 697, 1105, 1681, 1807, 2363, 2665, 3485, 5699, 8405, 9035, 9061, 11815, 21853, 28495, 28577, 30719, 45305, 74087, 96883, 109265, 142885, 153595, 233659, 370435, 371501, 484415, 1168295, 1259479, 1857505, 3037567, 3972203, 6297395, 15187835, 19861015, 51638639, 258193195]

約数ペア:

[(1, 258193195), (5, 51638639), (13, 19861015), (17, 15187835), (41, 6297395), (65, 3972203), (85, 3037567), (139, 1857505), (205, 1259479), (221, 1168295), (533, 484415), (695, 371501), (697, 370435), (1105, 233659), (1681, 153595), (1807, 142885), (2363, 109265), (2665, 96883), (3485, 74087), (5699, 45305), (8405, 30719), (9035, 28577), (9061, 28495), (11815, 21853)]