18889500

素因数分解:

$2^2\times 3^1\times 5^3\times 7^2\times {\mathrm{257}}^1$

素因数の和:293

約数の個数: 144

約数和(自身を含む): 64235808

約数和(自身を除く): 45346308

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 49, 50, 60, 70, 75, 84, 98, 100, 105, 125, 140, 147, 150, 175, 196, 210, 245, 250, 257, 294, 300, 350, 375, 420, 490, 500, 514, 525, 588, 700, 735, 750, 771, 875, 980, 1028, 1050, 1225, 1285, 1470, 1500, 1542, 1750, 1799, 2100, 2450, 2570, 2625, 2940, 3084, 3500, 3598, 3675, 3855, 4900, 5140, 5250, 5397, 6125, 6425, 7196, 7350, 7710, 8995, 10500, 10794, 12250, 12593, 12850, 14700, 15420, 17990, 18375, 19275, 21588, 24500, 25186, 25700, 26985, 32125, 35980, 36750, 37779, 38550, 44975, 50372, 53970, 62965, 64250, 73500, 75558, 77100, 89950, 96375, 107940, 125930, 128500, 134925, 151116, 179900, 188895, 192750, 224875, 251860, 269850, 314825, 377790, 385500, 449750, 539700, 629650, 674625, 755580, 899500, 944475, 1259300, 1349250, 1574125, 1888950, 2698500, 3148250, 3777900, 4722375, 6296500, 9444750, 18889500]

約数ペア:

[(1, 18889500), (2, 9444750), (3, 6296500), (4, 4722375), (5, 3777900), (6, 3148250), (7, 2698500), (10, 1888950), (12, 1574125), (14, 1349250), (15, 1259300), (20, 944475), (21, 899500), (25, 755580), (28, 674625), (30, 629650), (35, 539700), (42, 449750), (49, 385500), (50, 377790), (60, 314825), (70, 269850), (75, 251860), (84, 224875), (98, 192750), (100, 188895), (105, 179900), (125, 151116), (140, 134925), (147, 128500), (150, 125930), (175, 107940), (196, 96375), (210, 89950), (245, 77100), (250, 75558), (257, 73500), (294, 64250), (300, 62965), (350, 53970), (375, 50372), (420, 44975), (490, 38550), (500, 37779), (514, 36750), (525, 35980), (588, 32125), (700, 26985), (735, 25700), (750, 25186), (771, 24500), (875, 21588), (980, 19275), (1028, 18375), (1050, 17990), (1225, 15420), (1285, 14700), (1470, 12850), (1500, 12593), (1542, 12250), (1750, 10794), (1799, 10500), (2100, 8995), (2450, 7710), (2570, 7350), (2625, 7196), (2940, 6425), (3084, 6125), (3500, 5397), (3598, 5250), (3675, 5140), (3855, 4900)]