19871369880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{709}}^1\times {\mathrm{751}}^1$

素因数の和:1785

約数の個数: 128

約数和(自身を含む): 59969894400

約数和(自身を除く): 40098524520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 311, 622, 709, 751, 933, 1244, 1418, 1502, 1555, 1866, 2127, 2253, 2488, 2836, 3004, 3110, 3545, 3732, 3755, 4254, 4506, 4665, 5672, 6008, 6220, 7090, 7464, 7510, 8508, 9012, 9330, 10635, 11265, 12440, 14180, 15020, 17016, 18024, 18660, 21270, 22530, 28360, 30040, 37320, 42540, 45060, 85080, 90120, 220499, 233561, 440998, 467122, 532459, 661497, 700683, 881996, 934244, 1064918, 1102495, 1167805, 1322994, 1401366, 1597377, 1763992, 1868488, 2129836, 2204990, 2335610, 2645988, 2662295, 2802732, 3194754, 3307485, 3503415, 4259672, 4409980, 4671220, 5291976, 5324590, 5605464, 6389508, 6614970, 7006830, 7986885, 8819960, 9342440, 10649180, 12779016, 13229940, 14013660, 15973770, 21298360, 26459880, 28027320, 31947540, 63895080, 165594749, 331189498, 496784247, 662378996, 827973745, 993568494, 1324757992, 1655947490, 1987136988, 2483921235, 3311894980, 3974273976, 4967842470, 6623789960, 9935684940, 19871369880]

約数ペア:

[(1, 19871369880), (2, 9935684940), (3, 6623789960), (4, 4967842470), (5, 3974273976), (6, 3311894980), (8, 2483921235), (10, 1987136988), (12, 1655947490), (15, 1324757992), (20, 993568494), (24, 827973745), (30, 662378996), (40, 496784247), (60, 331189498), (120, 165594749), (311, 63895080), (622, 31947540), (709, 28027320), (751, 26459880), (933, 21298360), (1244, 15973770), (1418, 14013660), (1502, 13229940), (1555, 12779016), (1866, 10649180), (2127, 9342440), (2253, 8819960), (2488, 7986885), (2836, 7006830), (3004, 6614970), (3110, 6389508), (3545, 5605464), (3732, 5324590), (3755, 5291976), (4254, 4671220), (4506, 4409980), (4665, 4259672), (5672, 3503415), (6008, 3307485), (6220, 3194754), (7090, 2802732), (7464, 2662295), (7510, 2645988), (8508, 2335610), (9012, 2204990), (9330, 2129836), (10635, 1868488), (11265, 1763992), (12440, 1597377), (14180, 1401366), (15020, 1322994), (17016, 1167805), (18024, 1102495), (18660, 1064918), (21270, 934244), (22530, 881996), (28360, 700683), (30040, 661497), (37320, 532459), (42540, 467122), (45060, 440998), (85080, 233561), (90120, 220499)]