39806720

素因数分解:

$2^8\times 5^1\times {\mathrm{137}}^1\times {\mathrm{227}}^1$

素因数の和:385

約数の個数: 72

約数和(自身を含む): 96468624

約数和(自身を除く): 56661904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 137, 160, 227, 256, 274, 320, 454, 548, 640, 685, 908, 1096, 1135, 1280, 1370, 1816, 2192, 2270, 2740, 3632, 4384, 4540, 5480, 7264, 8768, 9080, 10960, 14528, 17536, 18160, 21920, 29056, 31099, 35072, 36320, 43840, 58112, 62198, 72640, 87680, 124396, 145280, 155495, 175360, 248792, 290560, 310990, 497584, 621980, 995168, 1243960, 1990336, 2487920, 3980672, 4975840, 7961344, 9951680, 19903360, 39806720]

約数ペア:

[(1, 39806720), (2, 19903360), (4, 9951680), (5, 7961344), (8, 4975840), (10, 3980672), (16, 2487920), (20, 1990336), (32, 1243960), (40, 995168), (64, 621980), (80, 497584), (128, 310990), (137, 290560), (160, 248792), (227, 175360), (256, 155495), (274, 145280), (320, 124396), (454, 87680), (548, 72640), (640, 62198), (685, 58112), (908, 43840), (1096, 36320), (1135, 35072), (1280, 31099), (1370, 29056), (1816, 21920), (2192, 18160), (2270, 17536), (2740, 14528), (3632, 10960), (4384, 9080), (4540, 8768), (5480, 7264)]