81859050

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1999}}^1$

素因数の和:2037

約数の個数: 144

約数和(自身を含む): 270816000

約数和(自身を除く): 188956950

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 25, 26, 30, 35, 39, 42, 45, 50, 63, 65, 70, 75, 78, 90, 91, 105, 117, 126, 130, 150, 175, 182, 195, 210, 225, 234, 273, 315, 325, 350, 390, 450, 455, 525, 546, 585, 630, 650, 819, 910, 975, 1050, 1170, 1365, 1575, 1638, 1950, 1999, 2275, 2730, 2925, 3150, 3998, 4095, 4550, 5850, 5997, 6825, 8190, 9995, 11994, 13650, 13993, 17991, 19990, 20475, 25987, 27986, 29985, 35982, 40950, 41979, 49975, 51974, 59970, 69965, 77961, 83958, 89955, 99950, 125937, 129935, 139930, 149925, 155922, 179910, 181909, 209895, 233883, 251874, 259870, 299850, 349825, 363818, 389805, 419790, 449775, 467766, 545727, 629685, 649675, 699650, 779610, 899550, 909545, 1049475, 1091454, 1169415, 1259370, 1299350, 1637181, 1819090, 1949025, 2098950, 2338830, 2728635, 3148425, 3274362, 3898050, 4547725, 5457270, 5847075, 6296850, 8185905, 9095450, 11694150, 13643175, 16371810, 27286350, 40929525, 81859050]

約数ペア:

[(1, 81859050), (2, 40929525), (3, 27286350), (5, 16371810), (6, 13643175), (7, 11694150), (9, 9095450), (10, 8185905), (13, 6296850), (14, 5847075), (15, 5457270), (18, 4547725), (21, 3898050), (25, 3274362), (26, 3148425), (30, 2728635), (35, 2338830), (39, 2098950), (42, 1949025), (45, 1819090), (50, 1637181), (63, 1299350), (65, 1259370), (70, 1169415), (75, 1091454), (78, 1049475), (90, 909545), (91, 899550), (105, 779610), (117, 699650), (126, 649675), (130, 629685), (150, 545727), (175, 467766), (182, 449775), (195, 419790), (210, 389805), (225, 363818), (234, 349825), (273, 299850), (315, 259870), (325, 251874), (350, 233883), (390, 209895), (450, 181909), (455, 179910), (525, 155922), (546, 149925), (585, 139930), (630, 129935), (650, 125937), (819, 99950), (910, 89955), (975, 83958), (1050, 77961), (1170, 69965), (1365, 59970), (1575, 51974), (1638, 49975), (1950, 41979), (1999, 40950), (2275, 35982), (2730, 29985), (2925, 27986), (3150, 25987), (3998, 20475), (4095, 19990), (4550, 17991), (5850, 13993), (5997, 13650), (6825, 11994), (8190, 9995)]