13118740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:149

約数の個数: 72

約数和(自身を含む): 30723840

約数和(自身を除く): 17605100

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 79, 92, 95, 115, 158, 190, 230, 316, 361, 380, 395, 437, 460, 722, 790, 874, 1444, 1501, 1580, 1748, 1805, 1817, 2185, 3002, 3610, 3634, 4370, 6004, 7220, 7268, 7505, 8303, 8740, 9085, 15010, 16606, 18170, 28519, 30020, 33212, 34523, 36340, 41515, 57038, 69046, 83030, 114076, 138092, 142595, 166060, 172615, 285190, 345230, 570380, 655937, 690460, 1311874, 2623748, 3279685, 6559370, 13118740]

約数ペア:

[(1, 13118740), (2, 6559370), (4, 3279685), (5, 2623748), (10, 1311874), (19, 690460), (20, 655937), (23, 570380), (38, 345230), (46, 285190), (76, 172615), (79, 166060), (92, 142595), (95, 138092), (115, 114076), (158, 83030), (190, 69046), (230, 57038), (316, 41515), (361, 36340), (380, 34523), (395, 33212), (437, 30020), (460, 28519), (722, 18170), (790, 16606), (874, 15010), (1444, 9085), (1501, 8740), (1580, 8303), (1748, 7505), (1805, 7268), (1817, 7220), (2185, 6004), (3002, 4370), (3610, 3634)]