22081280

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1327}}^1$

素因数の和:1361

約数の個数: 72

約数和(自身を含む): 57003072

約数和(自身を除く): 34921792

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1327, 1664, 2080, 2654, 3328, 4160, 5308, 6635, 8320, 10616, 13270, 16640, 17251, 21232, 26540, 34502, 42464, 53080, 69004, 84928, 86255, 106160, 138008, 169856, 172510, 212320, 276016, 339712, 345020, 424640, 552032, 690040, 849280, 1104064, 1380080, 1698560, 2208128, 2760160, 4416256, 5520320, 11040640, 22081280]

約数ペア:

[(1, 22081280), (2, 11040640), (4, 5520320), (5, 4416256), (8, 2760160), (10, 2208128), (13, 1698560), (16, 1380080), (20, 1104064), (26, 849280), (32, 690040), (40, 552032), (52, 424640), (64, 345020), (65, 339712), (80, 276016), (104, 212320), (128, 172510), (130, 169856), (160, 138008), (208, 106160), (256, 86255), (260, 84928), (320, 69004), (416, 53080), (520, 42464), (640, 34502), (832, 26540), (1040, 21232), (1280, 17251), (1327, 16640), (1664, 13270), (2080, 10616), (2654, 8320), (3328, 6635), (4160, 5308)]