19691220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{751}}^1$

素因数の和:805

約数の個数: 96

約数和(自身を含む): 60641280

約数和(自身を除く): 40950060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 23, 30, 38, 46, 57, 60, 69, 76, 92, 95, 114, 115, 138, 190, 228, 230, 276, 285, 345, 380, 437, 460, 570, 690, 751, 874, 1140, 1311, 1380, 1502, 1748, 2185, 2253, 2622, 3004, 3755, 4370, 4506, 5244, 6555, 7510, 8740, 9012, 11265, 13110, 14269, 15020, 17273, 22530, 26220, 28538, 34546, 42807, 45060, 51819, 57076, 69092, 71345, 85614, 86365, 103638, 142690, 171228, 172730, 207276, 214035, 259095, 285380, 328187, 345460, 428070, 518190, 656374, 856140, 984561, 1036380, 1312748, 1640935, 1969122, 3281870, 3938244, 4922805, 6563740, 9845610, 19691220]

約数ペア:

[(1, 19691220), (2, 9845610), (3, 6563740), (4, 4922805), (5, 3938244), (6, 3281870), (10, 1969122), (12, 1640935), (15, 1312748), (19, 1036380), (20, 984561), (23, 856140), (30, 656374), (38, 518190), (46, 428070), (57, 345460), (60, 328187), (69, 285380), (76, 259095), (92, 214035), (95, 207276), (114, 172730), (115, 171228), (138, 142690), (190, 103638), (228, 86365), (230, 85614), (276, 71345), (285, 69092), (345, 57076), (380, 51819), (437, 45060), (460, 42807), (570, 34546), (690, 28538), (751, 26220), (874, 22530), (1140, 17273), (1311, 15020), (1380, 14269), (1502, 13110), (1748, 11265), (2185, 9012), (2253, 8740), (2622, 7510), (3004, 6555), (3755, 5244), (4370, 4506)]