81005520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1951}}^1$

素因数の和:2140

約数の個数: 80

約数和(自身を含む): 252698112

約数和(自身を除く): 171692592

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 173, 240, 346, 519, 692, 865, 1038, 1384, 1730, 1951, 2076, 2595, 2768, 3460, 3902, 4152, 5190, 5853, 6920, 7804, 8304, 9755, 10380, 11706, 13840, 15608, 19510, 20760, 23412, 29265, 31216, 39020, 41520, 46824, 58530, 78040, 93648, 117060, 156080, 234120, 337523, 468240, 675046, 1012569, 1350092, 1687615, 2025138, 2700184, 3375230, 4050276, 5062845, 5400368, 6750460, 8100552, 10125690, 13500920, 16201104, 20251380, 27001840, 40502760, 81005520]

約数ペア:

[(1, 81005520), (2, 40502760), (3, 27001840), (4, 20251380), (5, 16201104), (6, 13500920), (8, 10125690), (10, 8100552), (12, 6750460), (15, 5400368), (16, 5062845), (20, 4050276), (24, 3375230), (30, 2700184), (40, 2025138), (48, 1687615), (60, 1350092), (80, 1012569), (120, 675046), (173, 468240), (240, 337523), (346, 234120), (519, 156080), (692, 117060), (865, 93648), (1038, 78040), (1384, 58530), (1730, 46824), (1951, 41520), (2076, 39020), (2595, 31216), (2768, 29265), (3460, 23412), (3902, 20760), (4152, 19510), (5190, 15608), (5853, 13840), (6920, 11706), (7804, 10380), (8304, 9755)]