244421840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{1193}}^1$

素因数の和:1416

約数の個数: 80

約数和(自身を含む): 615616848

約数和(自身を除く): 371195008

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 197, 208, 260, 394, 520, 788, 985, 1040, 1193, 1576, 1970, 2386, 2561, 3152, 3940, 4772, 5122, 5965, 7880, 9544, 10244, 11930, 12805, 15509, 15760, 19088, 20488, 23860, 25610, 31018, 40976, 47720, 51220, 62036, 77545, 95440, 102440, 124072, 155090, 204880, 235021, 248144, 310180, 470042, 620360, 940084, 1175105, 1240720, 1880168, 2350210, 3055273, 3760336, 4700420, 6110546, 9400840, 12221092, 15276365, 18801680, 24442184, 30552730, 48884368, 61105460, 122210920, 244421840]

約数ペア:

[(1, 244421840), (2, 122210920), (4, 61105460), (5, 48884368), (8, 30552730), (10, 24442184), (13, 18801680), (16, 15276365), (20, 12221092), (26, 9400840), (40, 6110546), (52, 4700420), (65, 3760336), (80, 3055273), (104, 2350210), (130, 1880168), (197, 1240720), (208, 1175105), (260, 940084), (394, 620360), (520, 470042), (788, 310180), (985, 248144), (1040, 235021), (1193, 204880), (1576, 155090), (1970, 124072), (2386, 102440), (2561, 95440), (3152, 77545), (3940, 62036), (4772, 51220), (5122, 47720), (5965, 40976), (7880, 31018), (9544, 25610), (10244, 23860), (11930, 20488), (12805, 19088), (15509, 15760)]