319879980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1999}}^1$

素因数の和:2148

約数の個数: 144

約数和(自身を含む): 1118208000

約数和(自身を除く): 798328020

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 127, 140, 180, 210, 252, 254, 315, 381, 420, 508, 630, 635, 762, 889, 1143, 1260, 1270, 1524, 1778, 1905, 1999, 2286, 2540, 2667, 3556, 3810, 3998, 4445, 4572, 5334, 5715, 5997, 7620, 7996, 8001, 8890, 9995, 10668, 11430, 11994, 13335, 13993, 16002, 17780, 17991, 19990, 22860, 23988, 26670, 27986, 29985, 32004, 35982, 39980, 40005, 41979, 53340, 55972, 59970, 69965, 71964, 80010, 83958, 89955, 119940, 125937, 139930, 160020, 167916, 179910, 209895, 251874, 253873, 279860, 359820, 419790, 503748, 507746, 629685, 761619, 839580, 1015492, 1259370, 1269365, 1523238, 1777111, 2284857, 2518740, 2538730, 3046476, 3554222, 3808095, 4569714, 5077460, 5331333, 7108444, 7616190, 8885555, 9139428, 10662666, 11424285, 15232380, 15993999, 17771110, 21325332, 22848570, 26656665, 31987998, 35542220, 45697140, 53313330, 63975996, 79969995, 106626660, 159939990, 319879980]

約数ペア:

[(1, 319879980), (2, 159939990), (3, 106626660), (4, 79969995), (5, 63975996), (6, 53313330), (7, 45697140), (9, 35542220), (10, 31987998), (12, 26656665), (14, 22848570), (15, 21325332), (18, 17771110), (20, 15993999), (21, 15232380), (28, 11424285), (30, 10662666), (35, 9139428), (36, 8885555), (42, 7616190), (45, 7108444), (60, 5331333), (63, 5077460), (70, 4569714), (84, 3808095), (90, 3554222), (105, 3046476), (126, 2538730), (127, 2518740), (140, 2284857), (180, 1777111), (210, 1523238), (252, 1269365), (254, 1259370), (315, 1015492), (381, 839580), (420, 761619), (508, 629685), (630, 507746), (635, 503748), (762, 419790), (889, 359820), (1143, 279860), (1260, 253873), (1270, 251874), (1524, 209895), (1778, 179910), (1905, 167916), (1999, 160020), (2286, 139930), (2540, 125937), (2667, 119940), (3556, 89955), (3810, 83958), (3998, 80010), (4445, 71964), (4572, 69965), (5334, 59970), (5715, 55972), (5997, 53340), (7620, 41979), (7996, 40005), (8001, 39980), (8890, 35982), (9995, 32004), (10668, 29985), (11430, 27986), (11994, 26670), (13335, 23988), (13993, 22860), (16002, 19990), (17780, 17991)]