317082880

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:244

約数の個数: 144

約数和(自身を含む): 802948608

約数和(自身を除く): 485865728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 61, 62, 64, 80, 122, 124, 128, 131, 155, 160, 244, 248, 256, 262, 305, 310, 320, 488, 496, 524, 610, 620, 640, 655, 976, 992, 1048, 1220, 1240, 1280, 1310, 1891, 1952, 1984, 2096, 2440, 2480, 2620, 3782, 3904, 3968, 4061, 4192, 4880, 4960, 5240, 7564, 7808, 7936, 7991, 8122, 8384, 9455, 9760, 9920, 10480, 15128, 15616, 15982, 16244, 16768, 18910, 19520, 19840, 20305, 20960, 30256, 31964, 32488, 33536, 37820, 39040, 39680, 39955, 40610, 41920, 60512, 63928, 64976, 75640, 78080, 79910, 81220, 83840, 121024, 127856, 129952, 151280, 159820, 162440, 167680, 242048, 247721, 255712, 259904, 302560, 319640, 324880, 484096, 495442, 511424, 519808, 605120, 639280, 649760, 990884, 1022848, 1039616, 1210240, 1238605, 1278560, 1299520, 1981768, 2045696, 2420480, 2477210, 2557120, 2599040, 3963536, 4954420, 5114240, 5198080, 7927072, 9908840, 10228480, 15854144, 19817680, 31708288, 39635360, 63416576, 79270720, 158541440, 317082880]

約数ペア:

[(1, 317082880), (2, 158541440), (4, 79270720), (5, 63416576), (8, 39635360), (10, 31708288), (16, 19817680), (20, 15854144), (31, 10228480), (32, 9908840), (40, 7927072), (61, 5198080), (62, 5114240), (64, 4954420), (80, 3963536), (122, 2599040), (124, 2557120), (128, 2477210), (131, 2420480), (155, 2045696), (160, 1981768), (244, 1299520), (248, 1278560), (256, 1238605), (262, 1210240), (305, 1039616), (310, 1022848), (320, 990884), (488, 649760), (496, 639280), (524, 605120), (610, 519808), (620, 511424), (640, 495442), (655, 484096), (976, 324880), (992, 319640), (1048, 302560), (1220, 259904), (1240, 255712), (1280, 247721), (1310, 242048), (1891, 167680), (1952, 162440), (1984, 159820), (2096, 151280), (2440, 129952), (2480, 127856), (2620, 121024), (3782, 83840), (3904, 81220), (3968, 79910), (4061, 78080), (4192, 75640), (4880, 64976), (4960, 63928), (5240, 60512), (7564, 41920), (7808, 40610), (7936, 39955), (7991, 39680), (8122, 39040), (8384, 37820), (9455, 33536), (9760, 32488), (9920, 31964), (10480, 30256), (15128, 20960), (15616, 20305), (15982, 19840), (16244, 19520), (16768, 18910)]