128835140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{2903}}^1$

素因数の和:3236

約数の個数: 48

約数和(自身を含む): 310286592

約数和(自身を除く): 181451452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 317, 634, 1268, 1585, 2219, 2903, 3170, 4438, 5806, 6340, 8876, 11095, 11612, 14515, 20321, 22190, 29030, 40642, 44380, 58060, 81284, 101605, 203210, 406420, 920251, 1840502, 3681004, 4601255, 6441757, 9202510, 12883514, 18405020, 25767028, 32208785, 64417570, 128835140]

約数ペア:

[(1, 128835140), (2, 64417570), (4, 32208785), (5, 25767028), (7, 18405020), (10, 12883514), (14, 9202510), (20, 6441757), (28, 4601255), (35, 3681004), (70, 1840502), (140, 920251), (317, 406420), (634, 203210), (1268, 101605), (1585, 81284), (2219, 58060), (2903, 44380), (3170, 40642), (4438, 29030), (5806, 22190), (6340, 20321), (8876, 14515), (11095, 11612)]