68689980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{13159}}^1$

素因数の和:13203

約数の個数: 72

約数和(自身を含む): 215560800

約数和(自身を除く): 146870820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 348, 435, 522, 580, 870, 1044, 1305, 1740, 2610, 5220, 13159, 26318, 39477, 52636, 65795, 78954, 118431, 131590, 157908, 197385, 236862, 263180, 381611, 394770, 473724, 592155, 763222, 789540, 1144833, 1184310, 1526444, 1908055, 2289666, 2368620, 3434499, 3816110, 4579332, 5724165, 6868998, 7632220, 11448330, 13737996, 17172495, 22896660, 34344990, 68689980]

約数ペア:

[(1, 68689980), (2, 34344990), (3, 22896660), (4, 17172495), (5, 13737996), (6, 11448330), (9, 7632220), (10, 6868998), (12, 5724165), (15, 4579332), (18, 3816110), (20, 3434499), (29, 2368620), (30, 2289666), (36, 1908055), (45, 1526444), (58, 1184310), (60, 1144833), (87, 789540), (90, 763222), (116, 592155), (145, 473724), (174, 394770), (180, 381611), (261, 263180), (290, 236862), (348, 197385), (435, 157908), (522, 131590), (580, 118431), (870, 78954), (1044, 65795), (1305, 52636), (1740, 39477), (2610, 26318), (5220, 13159)]