18439680

素因数分解:

$2^9\times 3^1\times 5^1\times 7^4$

素因数の和:54

約数の個数: 200

約数和(自身を含む): 68770152

約数和(自身を除く): 50330472

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 64, 70, 80, 84, 96, 98, 105, 112, 120, 128, 140, 147, 160, 168, 192, 196, 210, 224, 240, 245, 256, 280, 294, 320, 336, 343, 384, 392, 420, 448, 480, 490, 512, 560, 588, 640, 672, 686, 735, 768, 784, 840, 896, 960, 980, 1029, 1120, 1176, 1280, 1344, 1372, 1470, 1536, 1568, 1680, 1715, 1792, 1920, 1960, 2058, 2240, 2352, 2401, 2560, 2688, 2744, 2940, 3136, 3360, 3430, 3584, 3840, 3920, 4116, 4480, 4704, 4802, 5145, 5376, 5488, 5880, 6272, 6720, 6860, 7203, 7680, 7840, 8232, 8960, 9408, 9604, 10290, 10752, 10976, 11760, 12005, 12544, 13440, 13720, 14406, 15680, 16464, 17920, 18816, 19208, 20580, 21952, 23520, 24010, 25088, 26880, 27440, 28812, 31360, 32928, 36015, 37632, 38416, 41160, 43904, 47040, 48020, 53760, 54880, 57624, 62720, 65856, 72030, 75264, 76832, 82320, 87808, 94080, 96040, 109760, 115248, 125440, 131712, 144060, 153664, 164640, 175616, 188160, 192080, 219520, 230496, 263424, 288120, 307328, 329280, 376320, 384160, 439040, 460992, 526848, 576240, 614656, 658560, 768320, 878080, 921984, 1152480, 1229312, 1317120, 1536640, 1843968, 2304960, 2634240, 3073280, 3687936, 4609920, 6146560, 9219840, 18439680]

約数ペア:

[(1, 18439680), (2, 9219840), (3, 6146560), (4, 4609920), (5, 3687936), (6, 3073280), (7, 2634240), (8, 2304960), (10, 1843968), (12, 1536640), (14, 1317120), (15, 1229312), (16, 1152480), (20, 921984), (21, 878080), (24, 768320), (28, 658560), (30, 614656), (32, 576240), (35, 526848), (40, 460992), (42, 439040), (48, 384160), (49, 376320), (56, 329280), (60, 307328), (64, 288120), (70, 263424), (80, 230496), (84, 219520), (96, 192080), (98, 188160), (105, 175616), (112, 164640), (120, 153664), (128, 144060), (140, 131712), (147, 125440), (160, 115248), (168, 109760), (192, 96040), (196, 94080), (210, 87808), (224, 82320), (240, 76832), (245, 75264), (256, 72030), (280, 65856), (294, 62720), (320, 57624), (336, 54880), (343, 53760), (384, 48020), (392, 47040), (420, 43904), (448, 41160), (480, 38416), (490, 37632), (512, 36015), (560, 32928), (588, 31360), (640, 28812), (672, 27440), (686, 26880), (735, 25088), (768, 24010), (784, 23520), (840, 21952), (896, 20580), (960, 19208), (980, 18816), (1029, 17920), (1120, 16464), (1176, 15680), (1280, 14406), (1344, 13720), (1372, 13440), (1470, 12544), (1536, 12005), (1568, 11760), (1680, 10976), (1715, 10752), (1792, 10290), (1920, 9604), (1960, 9408), (2058, 8960), (2240, 8232), (2352, 7840), (2401, 7680), (2560, 7203), (2688, 6860), (2744, 6720), (2940, 6272), (3136, 5880), (3360, 5488), (3430, 5376), (3584, 5145), (3840, 4802), (3920, 4704), (4116, 4480)]