128356740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{23003}}^1$

素因数の和:23049

約数の個数: 72

約数和(自身を含む): 401925888

約数和(自身を除く): 273569148

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 23003, 46006, 69009, 92012, 115015, 138018, 207027, 230030, 276036, 345045, 414054, 460060, 690090, 713093, 828108, 1035135, 1380180, 1426186, 2070270, 2139279, 2852372, 3565465, 4140540, 4278558, 6417837, 7130930, 8557116, 10696395, 12835674, 14261860, 21392790, 25671348, 32089185, 42785580, 64178370, 128356740]

約数ペア:

[(1, 128356740), (2, 64178370), (3, 42785580), (4, 32089185), (5, 25671348), (6, 21392790), (9, 14261860), (10, 12835674), (12, 10696395), (15, 8557116), (18, 7130930), (20, 6417837), (30, 4278558), (31, 4140540), (36, 3565465), (45, 2852372), (60, 2139279), (62, 2070270), (90, 1426186), (93, 1380180), (124, 1035135), (155, 828108), (180, 713093), (186, 690090), (279, 460060), (310, 414054), (372, 345045), (465, 276036), (558, 230030), (620, 207027), (930, 138018), (1116, 115015), (1395, 92012), (1860, 69009), (2790, 46006), (5580, 23003)]