80985720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{661}}^1\times {\mathrm{1021}}^1$

素因数の和:1696

約数の個数: 64

約数和(自身を含む): 243563040

約数和(自身を除く): 162577320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 661, 1021, 1322, 1983, 2042, 2644, 3063, 3305, 3966, 4084, 5105, 5288, 6126, 6610, 7932, 8168, 9915, 10210, 12252, 13220, 15315, 15864, 19830, 20420, 24504, 26440, 30630, 39660, 40840, 61260, 79320, 122520, 674881, 1349762, 2024643, 2699524, 3374405, 4049286, 5399048, 6748810, 8098572, 10123215, 13497620, 16197144, 20246430, 26995240, 40492860, 80985720]

約数ペア:

[(1, 80985720), (2, 40492860), (3, 26995240), (4, 20246430), (5, 16197144), (6, 13497620), (8, 10123215), (10, 8098572), (12, 6748810), (15, 5399048), (20, 4049286), (24, 3374405), (30, 2699524), (40, 2024643), (60, 1349762), (120, 674881), (661, 122520), (1021, 79320), (1322, 61260), (1983, 40840), (2042, 39660), (2644, 30630), (3063, 26440), (3305, 24504), (3966, 20420), (4084, 19830), (5105, 15864), (5288, 15315), (6126, 13220), (6610, 12252), (7932, 10210), (8168, 9915)]