80405520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25771}}^1$

素因数の和:25800

約数の個数: 80

約数和(自身を含む): 268441152

約数和(自身を除く): 188035632

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 25771, 51542, 77313, 103084, 128855, 154626, 206168, 257710, 309252, 335023, 386565, 412336, 515420, 618504, 670046, 773130, 1005069, 1030840, 1237008, 1340092, 1546260, 1675115, 2010138, 2061680, 2680184, 3092520, 3350230, 4020276, 5025345, 5360368, 6185040, 6700460, 8040552, 10050690, 13400920, 16081104, 20101380, 26801840, 40202760, 80405520]

約数ペア:

[(1, 80405520), (2, 40202760), (3, 26801840), (4, 20101380), (5, 16081104), (6, 13400920), (8, 10050690), (10, 8040552), (12, 6700460), (13, 6185040), (15, 5360368), (16, 5025345), (20, 4020276), (24, 3350230), (26, 3092520), (30, 2680184), (39, 2061680), (40, 2010138), (48, 1675115), (52, 1546260), (60, 1340092), (65, 1237008), (78, 1030840), (80, 1005069), (104, 773130), (120, 670046), (130, 618504), (156, 515420), (195, 412336), (208, 386565), (240, 335023), (260, 309252), (312, 257710), (390, 206168), (520, 154626), (624, 128855), (780, 103084), (1040, 77313), (1560, 51542), (3120, 25771)]