26221520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1327}}^1$

素因数の和:1372

約数の個数: 80

約数和(自身を含む): 69162240

約数和(自身を除く): 42940720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 520, 760, 988, 1040, 1235, 1327, 1520, 1976, 2470, 2654, 3952, 4940, 5308, 6635, 9880, 10616, 13270, 17251, 19760, 21232, 25213, 26540, 34502, 50426, 53080, 69004, 86255, 100852, 106160, 126065, 138008, 172510, 201704, 252130, 276016, 327769, 345020, 403408, 504260, 655538, 690040, 1008520, 1311076, 1380080, 1638845, 2017040, 2622152, 3277690, 5244304, 6555380, 13110760, 26221520]

約数ペア:

[(1, 26221520), (2, 13110760), (4, 6555380), (5, 5244304), (8, 3277690), (10, 2622152), (13, 2017040), (16, 1638845), (19, 1380080), (20, 1311076), (26, 1008520), (38, 690040), (40, 655538), (52, 504260), (65, 403408), (76, 345020), (80, 327769), (95, 276016), (104, 252130), (130, 201704), (152, 172510), (190, 138008), (208, 126065), (247, 106160), (260, 100852), (304, 86255), (380, 69004), (494, 53080), (520, 50426), (760, 34502), (988, 26540), (1040, 25213), (1235, 21232), (1327, 19760), (1520, 17251), (1976, 13270), (2470, 10616), (2654, 9880), (3952, 6635), (4940, 5308)]