18939840

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:310

約数の個数: 112

約数和(自身を含む): 61020960

約数和(自身を除く): 42081120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 109, 120, 160, 181, 192, 218, 240, 320, 327, 362, 436, 480, 543, 545, 654, 724, 872, 905, 960, 1086, 1090, 1308, 1448, 1635, 1744, 1810, 2172, 2180, 2616, 2715, 2896, 3270, 3488, 3620, 4344, 4360, 5232, 5430, 5792, 6540, 6976, 7240, 8688, 8720, 10464, 10860, 11584, 13080, 14480, 17376, 17440, 19729, 20928, 21720, 26160, 28960, 34752, 34880, 39458, 43440, 52320, 57920, 59187, 78916, 86880, 98645, 104640, 118374, 157832, 173760, 197290, 236748, 295935, 315664, 394580, 473496, 591870, 631328, 789160, 946992, 1183740, 1262656, 1578320, 1893984, 2367480, 3156640, 3787968, 4734960, 6313280, 9469920, 18939840]

約数ペア:

[(1, 18939840), (2, 9469920), (3, 6313280), (4, 4734960), (5, 3787968), (6, 3156640), (8, 2367480), (10, 1893984), (12, 1578320), (15, 1262656), (16, 1183740), (20, 946992), (24, 789160), (30, 631328), (32, 591870), (40, 473496), (48, 394580), (60, 315664), (64, 295935), (80, 236748), (96, 197290), (109, 173760), (120, 157832), (160, 118374), (181, 104640), (192, 98645), (218, 86880), (240, 78916), (320, 59187), (327, 57920), (362, 52320), (436, 43440), (480, 39458), (543, 34880), (545, 34752), (654, 28960), (724, 26160), (872, 21720), (905, 20928), (960, 19729), (1086, 17440), (1090, 17376), (1308, 14480), (1448, 13080), (1635, 11584), (1744, 10860), (1810, 10464), (2172, 8720), (2180, 8688), (2616, 7240), (2715, 6976), (2896, 6540), (3270, 5792), (3488, 5430), (3620, 5232), (4344, 4360)]