19994880

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1$

素因数の和:192

約数の個数: 144

約数和(自身を含む): 65931264

約数和(自身を除く): 45936384

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 41, 48, 60, 64, 80, 82, 96, 120, 123, 127, 128, 160, 164, 192, 205, 240, 246, 254, 256, 320, 328, 381, 384, 410, 480, 492, 508, 615, 635, 640, 656, 762, 768, 820, 960, 984, 1016, 1230, 1270, 1280, 1312, 1524, 1640, 1905, 1920, 1968, 2032, 2460, 2540, 2624, 3048, 3280, 3810, 3840, 3936, 4064, 4920, 5080, 5207, 5248, 6096, 6560, 7620, 7872, 8128, 9840, 10160, 10414, 10496, 12192, 13120, 15240, 15621, 15744, 16256, 19680, 20320, 20828, 24384, 26035, 26240, 30480, 31242, 31488, 32512, 39360, 40640, 41656, 48768, 52070, 52480, 60960, 62484, 78105, 78720, 81280, 83312, 97536, 104140, 121920, 124968, 156210, 157440, 162560, 166624, 208280, 243840, 249936, 312420, 333248, 416560, 487680, 499872, 624840, 666496, 833120, 999744, 1249680, 1332992, 1666240, 1999488, 2499360, 3332480, 3998976, 4998720, 6664960, 9997440, 19994880]

約数ペア:

[(1, 19994880), (2, 9997440), (3, 6664960), (4, 4998720), (5, 3998976), (6, 3332480), (8, 2499360), (10, 1999488), (12, 1666240), (15, 1332992), (16, 1249680), (20, 999744), (24, 833120), (30, 666496), (32, 624840), (40, 499872), (41, 487680), (48, 416560), (60, 333248), (64, 312420), (80, 249936), (82, 243840), (96, 208280), (120, 166624), (123, 162560), (127, 157440), (128, 156210), (160, 124968), (164, 121920), (192, 104140), (205, 97536), (240, 83312), (246, 81280), (254, 78720), (256, 78105), (320, 62484), (328, 60960), (381, 52480), (384, 52070), (410, 48768), (480, 41656), (492, 40640), (508, 39360), (615, 32512), (635, 31488), (640, 31242), (656, 30480), (762, 26240), (768, 26035), (820, 24384), (960, 20828), (984, 20320), (1016, 19680), (1230, 16256), (1270, 15744), (1280, 15621), (1312, 15240), (1524, 13120), (1640, 12192), (1905, 10496), (1920, 10414), (1968, 10160), (2032, 9840), (2460, 8128), (2540, 7872), (2624, 7620), (3048, 6560), (3280, 6096), (3810, 5248), (3840, 5207), (3936, 5080), (4064, 4920)]