80421840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{111697}}^1$

素因数の和:111716

約数の個数: 60

約数和(自身を含む): 270085764

約数和(自身を除く): 189663924

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 111697, 223394, 335091, 446788, 558485, 670182, 893576, 1005273, 1116970, 1340364, 1675455, 1787152, 2010546, 2233940, 2680728, 3350910, 4021092, 4467880, 5026365, 5361456, 6701820, 8042184, 8935760, 10052730, 13403640, 16084368, 20105460, 26807280, 40210920, 80421840]

約数ペア:

[(1, 80421840), (2, 40210920), (3, 26807280), (4, 20105460), (5, 16084368), (6, 13403640), (8, 10052730), (9, 8935760), (10, 8042184), (12, 6701820), (15, 5361456), (16, 5026365), (18, 4467880), (20, 4021092), (24, 3350910), (30, 2680728), (36, 2233940), (40, 2010546), (45, 1787152), (48, 1675455), (60, 1340364), (72, 1116970), (80, 1005273), (90, 893576), (120, 670182), (144, 558485), (180, 446788), (240, 335091), (360, 223394), (720, 111697)]