21497788160

素因数分解:

$2^8\times 5^1\times {\mathrm{29}}^1\times {\mathrm{347}}^1\times {\mathrm{1669}}^1$

素因数の和:2066

約数の個数: 144

約数和(自身を含む): 53455096800

約数和(自身を除く): 31957308640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 256, 290, 320, 347, 464, 580, 640, 694, 928, 1160, 1280, 1388, 1669, 1735, 1856, 2320, 2776, 3338, 3470, 3712, 4640, 5552, 6676, 6940, 7424, 8345, 9280, 10063, 11104, 13352, 13880, 16690, 18560, 20126, 22208, 26704, 27760, 33380, 37120, 40252, 44416, 48401, 50315, 53408, 55520, 66760, 80504, 88832, 96802, 100630, 106816, 111040, 133520, 161008, 193604, 201260, 213632, 222080, 242005, 267040, 322016, 387208, 402520, 427264, 444160, 484010, 534080, 579143, 644032, 774416, 805040, 968020, 1068160, 1158286, 1288064, 1548832, 1610080, 1936040, 2136320, 2316572, 2576128, 2895715, 3097664, 3220160, 3872080, 4633144, 5791430, 6195328, 6440320, 7744160, 9266288, 11582860, 12390656, 12880640, 15488320, 16795147, 18532576, 23165720, 30976640, 33590294, 37065152, 46331440, 61953280, 67180588, 74130304, 83975735, 92662880, 134361176, 148260608, 167951470, 185325760, 268722352, 335902940, 370651520, 537444704, 671805880, 741303040, 1074889408, 1343611760, 2149778816, 2687223520, 4299557632, 5374447040, 10748894080, 21497788160]

約数ペア:

[(1, 21497788160), (2, 10748894080), (4, 5374447040), (5, 4299557632), (8, 2687223520), (10, 2149778816), (16, 1343611760), (20, 1074889408), (29, 741303040), (32, 671805880), (40, 537444704), (58, 370651520), (64, 335902940), (80, 268722352), (116, 185325760), (128, 167951470), (145, 148260608), (160, 134361176), (232, 92662880), (256, 83975735), (290, 74130304), (320, 67180588), (347, 61953280), (464, 46331440), (580, 37065152), (640, 33590294), (694, 30976640), (928, 23165720), (1160, 18532576), (1280, 16795147), (1388, 15488320), (1669, 12880640), (1735, 12390656), (1856, 11582860), (2320, 9266288), (2776, 7744160), (3338, 6440320), (3470, 6195328), (3712, 5791430), (4640, 4633144), (5552, 3872080), (6676, 3220160), (6940, 3097664), (7424, 2895715), (8345, 2576128), (9280, 2316572), (10063, 2136320), (11104, 1936040), (13352, 1610080), (13880, 1548832), (16690, 1288064), (18560, 1158286), (20126, 1068160), (22208, 968020), (26704, 805040), (27760, 774416), (33380, 644032), (37120, 579143), (40252, 534080), (44416, 484010), (48401, 444160), (50315, 427264), (53408, 402520), (55520, 387208), (66760, 322016), (80504, 267040), (88832, 242005), (96802, 222080), (100630, 213632), (106816, 201260), (111040, 193604), (133520, 161008)]