18906240

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1$

素因数の和:294

約数の個数: 128

約数和(自身を含む): 61934400

約数和(自身を除く): 43028160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 43, 48, 60, 64, 80, 86, 96, 120, 128, 129, 160, 172, 192, 215, 229, 240, 258, 320, 344, 384, 430, 458, 480, 516, 640, 645, 687, 688, 860, 916, 960, 1032, 1145, 1290, 1374, 1376, 1720, 1832, 1920, 2064, 2290, 2580, 2748, 2752, 3435, 3440, 3664, 4128, 4580, 5160, 5496, 5504, 6870, 6880, 7328, 8256, 9160, 9847, 10320, 10992, 13740, 13760, 14656, 16512, 18320, 19694, 20640, 21984, 27480, 27520, 29312, 29541, 36640, 39388, 41280, 43968, 49235, 54960, 59082, 73280, 78776, 82560, 87936, 98470, 109920, 118164, 146560, 147705, 157552, 196940, 219840, 236328, 295410, 315104, 393880, 439680, 472656, 590820, 630208, 787760, 945312, 1181640, 1260416, 1575520, 1890624, 2363280, 3151040, 3781248, 4726560, 6302080, 9453120, 18906240]

約数ペア:

[(1, 18906240), (2, 9453120), (3, 6302080), (4, 4726560), (5, 3781248), (6, 3151040), (8, 2363280), (10, 1890624), (12, 1575520), (15, 1260416), (16, 1181640), (20, 945312), (24, 787760), (30, 630208), (32, 590820), (40, 472656), (43, 439680), (48, 393880), (60, 315104), (64, 295410), (80, 236328), (86, 219840), (96, 196940), (120, 157552), (128, 147705), (129, 146560), (160, 118164), (172, 109920), (192, 98470), (215, 87936), (229, 82560), (240, 78776), (258, 73280), (320, 59082), (344, 54960), (384, 49235), (430, 43968), (458, 41280), (480, 39388), (516, 36640), (640, 29541), (645, 29312), (687, 27520), (688, 27480), (860, 21984), (916, 20640), (960, 19694), (1032, 18320), (1145, 16512), (1290, 14656), (1374, 13760), (1376, 13740), (1720, 10992), (1832, 10320), (1920, 9847), (2064, 9160), (2290, 8256), (2580, 7328), (2748, 6880), (2752, 6870), (3435, 5504), (3440, 5496), (3664, 5160), (4128, 4580)]