19944960

素因数分解:

$2^9\times 3^1\times 5^1\times 7^2\times {\mathrm{53}}^1$

素因数の和:93

約数の個数: 240

約数和(自身を含む): 75571056

約数和(自身を除く): 55626096

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, 53, 56, 60, 64, 70, 80, 84, 96, 98, 105, 106, 112, 120, 128, 140, 147, 159, 160, 168, 192, 196, 210, 212, 224, 240, 245, 256, 265, 280, 294, 318, 320, 336, 371, 384, 392, 420, 424, 448, 480, 490, 512, 530, 560, 588, 636, 640, 672, 735, 742, 768, 784, 795, 840, 848, 896, 960, 980, 1060, 1113, 1120, 1176, 1272, 1280, 1344, 1470, 1484, 1536, 1568, 1590, 1680, 1696, 1792, 1855, 1920, 1960, 2120, 2226, 2240, 2352, 2544, 2560, 2597, 2688, 2940, 2968, 3136, 3180, 3360, 3392, 3584, 3710, 3840, 3920, 4240, 4452, 4480, 4704, 5088, 5194, 5376, 5565, 5880, 5936, 6272, 6360, 6720, 6784, 7420, 7680, 7791, 7840, 8480, 8904, 8960, 9408, 10176, 10388, 10752, 11130, 11760, 11872, 12544, 12720, 12985, 13440, 13568, 14840, 15582, 15680, 16960, 17808, 17920, 18816, 20352, 20776, 22260, 23520, 23744, 25088, 25440, 25970, 26880, 27136, 29680, 31164, 31360, 33920, 35616, 37632, 38955, 40704, 41552, 44520, 47040, 47488, 50880, 51940, 53760, 59360, 62328, 62720, 67840, 71232, 75264, 77910, 81408, 83104, 89040, 94080, 94976, 101760, 103880, 118720, 124656, 125440, 135680, 142464, 155820, 166208, 178080, 188160, 189952, 203520, 207760, 237440, 249312, 284928, 311640, 332416, 356160, 376320, 407040, 415520, 474880, 498624, 569856, 623280, 664832, 712320, 831040, 949760, 997248, 1246560, 1329664, 1424640, 1662080, 1994496, 2493120, 2849280, 3324160, 3988992, 4986240, 6648320, 9972480, 19944960]

約数ペア:

[(1, 19944960), (2, 9972480), (3, 6648320), (4, 4986240), (5, 3988992), (6, 3324160), (7, 2849280), (8, 2493120), (10, 1994496), (12, 1662080), (14, 1424640), (15, 1329664), (16, 1246560), (20, 997248), (21, 949760), (24, 831040), (28, 712320), (30, 664832), (32, 623280), (35, 569856), (40, 498624), (42, 474880), (48, 415520), (49, 407040), (53, 376320), (56, 356160), (60, 332416), (64, 311640), (70, 284928), (80, 249312), (84, 237440), (96, 207760), (98, 203520), (105, 189952), (106, 188160), (112, 178080), (120, 166208), (128, 155820), (140, 142464), (147, 135680), (159, 125440), (160, 124656), (168, 118720), (192, 103880), (196, 101760), (210, 94976), (212, 94080), (224, 89040), (240, 83104), (245, 81408), (256, 77910), (265, 75264), (280, 71232), (294, 67840), (318, 62720), (320, 62328), (336, 59360), (371, 53760), (384, 51940), (392, 50880), (420, 47488), (424, 47040), (448, 44520), (480, 41552), (490, 40704), (512, 38955), (530, 37632), (560, 35616), (588, 33920), (636, 31360), (640, 31164), (672, 29680), (735, 27136), (742, 26880), (768, 25970), (784, 25440), (795, 25088), (840, 23744), (848, 23520), (896, 22260), (960, 20776), (980, 20352), (1060, 18816), (1113, 17920), (1120, 17808), (1176, 16960), (1272, 15680), (1280, 15582), (1344, 14840), (1470, 13568), (1484, 13440), (1536, 12985), (1568, 12720), (1590, 12544), (1680, 11872), (1696, 11760), (1792, 11130), (1855, 10752), (1920, 10388), (1960, 10176), (2120, 9408), (2226, 8960), (2240, 8904), (2352, 8480), (2544, 7840), (2560, 7791), (2597, 7680), (2688, 7420), (2940, 6784), (2968, 6720), (3136, 6360), (3180, 6272), (3360, 5936), (3392, 5880), (3584, 5565), (3710, 5376), (3840, 5194), (3920, 5088), (4240, 4704), (4452, 4480)]