87191440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{155699}}^1$

素因数の和:155719

約数の個数: 40

約数和(自身を含む): 231681600

約数和(自身を除く): 144490160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 155699, 311398, 622796, 778495, 1089893, 1245592, 1556990, 2179786, 2491184, 3113980, 4359572, 5449465, 6227960, 8719144, 10898930, 12455920, 17438288, 21797860, 43595720, 87191440]

約数ペア:

[(1, 87191440), (2, 43595720), (4, 21797860), (5, 17438288), (7, 12455920), (8, 10898930), (10, 8719144), (14, 6227960), (16, 5449465), (20, 4359572), (28, 3113980), (35, 2491184), (40, 2179786), (56, 1556990), (70, 1245592), (80, 1089893), (112, 778495), (140, 622796), (280, 311398), (560, 155699)]