20905437480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{229}}^1\times {\mathrm{619}}^1\times {\mathrm{1229}}^1$

素因数の和:2091

約数の個数: 128

約数和(自身を含む): 63143280000

約数和(自身を除く): 42237842520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 229, 458, 619, 687, 916, 1145, 1229, 1238, 1374, 1832, 1857, 2290, 2458, 2476, 2748, 3095, 3435, 3687, 3714, 4580, 4916, 4952, 5496, 6145, 6190, 6870, 7374, 7428, 9160, 9285, 9832, 12290, 12380, 13740, 14748, 14856, 18435, 18570, 24580, 24760, 27480, 29496, 36870, 37140, 49160, 73740, 74280, 141751, 147480, 281441, 283502, 425253, 562882, 567004, 708755, 760751, 844323, 850506, 1125764, 1134008, 1407205, 1417510, 1521502, 1688646, 1701012, 2126265, 2251528, 2282253, 2814410, 2835020, 3043004, 3377292, 3402024, 3803755, 4221615, 4252530, 4564506, 5628820, 5670040, 6086008, 6754584, 7607510, 8443230, 8505060, 9129012, 11257640, 11411265, 15215020, 16886460, 17010120, 18258024, 22822530, 30430040, 33772920, 45645060, 91290120, 174211979, 348423958, 522635937, 696847916, 871059895, 1045271874, 1393695832, 1742119790, 2090543748, 2613179685, 3484239580, 4181087496, 5226359370, 6968479160, 10452718740, 20905437480]

約数ペア:

[(1, 20905437480), (2, 10452718740), (3, 6968479160), (4, 5226359370), (5, 4181087496), (6, 3484239580), (8, 2613179685), (10, 2090543748), (12, 1742119790), (15, 1393695832), (20, 1045271874), (24, 871059895), (30, 696847916), (40, 522635937), (60, 348423958), (120, 174211979), (229, 91290120), (458, 45645060), (619, 33772920), (687, 30430040), (916, 22822530), (1145, 18258024), (1229, 17010120), (1238, 16886460), (1374, 15215020), (1832, 11411265), (1857, 11257640), (2290, 9129012), (2458, 8505060), (2476, 8443230), (2748, 7607510), (3095, 6754584), (3435, 6086008), (3687, 5670040), (3714, 5628820), (4580, 4564506), (4916, 4252530), (4952, 4221615), (5496, 3803755), (6145, 3402024), (6190, 3377292), (6870, 3043004), (7374, 2835020), (7428, 2814410), (9160, 2282253), (9285, 2251528), (9832, 2126265), (12290, 1701012), (12380, 1688646), (13740, 1521502), (14748, 1417510), (14856, 1407205), (18435, 1134008), (18570, 1125764), (24580, 850506), (24760, 844323), (27480, 760751), (29496, 708755), (36870, 567004), (37140, 562882), (49160, 425253), (73740, 283502), (74280, 281441), (141751, 147480)]