80581680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{111919}}^1$

素因数の和:111938

約数の個数: 60

約数和(自身を含む): 270622560

約数和(自身を除く): 190040880

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, 111919, 223838, 335757, 447676, 559595, 671514, 895352, 1007271, 1119190, 1343028, 1678785, 1790704, 2014542, 2238380, 2686056, 3357570, 4029084, 4476760, 5036355, 5372112, 6715140, 8058168, 8953520, 10072710, 13430280, 16116336, 20145420, 26860560, 40290840, 80581680]

約数ペア:

[(1, 80581680), (2, 40290840), (3, 26860560), (4, 20145420), (5, 16116336), (6, 13430280), (8, 10072710), (9, 8953520), (10, 8058168), (12, 6715140), (15, 5372112), (16, 5036355), (18, 4476760), (20, 4029084), (24, 3357570), (30, 2686056), (36, 2238380), (40, 2014542), (45, 1790704), (48, 1678785), (60, 1343028), (72, 1119190), (80, 1007271), (90, 895352), (120, 671514), (144, 559595), (180, 447676), (240, 335757), (360, 223838), (720, 111919)]