1120147120

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1\times {\mathrm{991}}^1$

素因数の和:1274

約数の個数: 80

約数和(自身を含む): 2656972800

約数和(自身を除く): 1536825680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 199, 284, 355, 398, 568, 710, 796, 991, 995, 1136, 1420, 1592, 1982, 1990, 2840, 3184, 3964, 3980, 4955, 5680, 7928, 7960, 9910, 14129, 15856, 15920, 19820, 28258, 39640, 56516, 70361, 70645, 79280, 113032, 140722, 141290, 197209, 226064, 281444, 282580, 351805, 394418, 562888, 565160, 703610, 788836, 986045, 1125776, 1130320, 1407220, 1577672, 1972090, 2814440, 3155344, 3944180, 5628880, 7888360, 14001839, 15776720, 28003678, 56007356, 70009195, 112014712, 140018390, 224029424, 280036780, 560073560, 1120147120]

約数ペア:

[(1, 1120147120), (2, 560073560), (4, 280036780), (5, 224029424), (8, 140018390), (10, 112014712), (16, 70009195), (20, 56007356), (40, 28003678), (71, 15776720), (80, 14001839), (142, 7888360), (199, 5628880), (284, 3944180), (355, 3155344), (398, 2814440), (568, 1972090), (710, 1577672), (796, 1407220), (991, 1130320), (995, 1125776), (1136, 986045), (1420, 788836), (1592, 703610), (1982, 565160), (1990, 562888), (2840, 394418), (3184, 351805), (3964, 282580), (3980, 281444), (4955, 226064), (5680, 197209), (7928, 141290), (7960, 140722), (9910, 113032), (14129, 79280), (15856, 70645), (15920, 70361), (19820, 56516), (28258, 39640)]