39490120

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{3643}}^1$

素因数の和:3925

約数の個数: 32

約数和(自身を含む): 89205120

約数和(自身を除く): 49715000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 2168, 2710, 3643, 5420, 7286, 10840, 14572, 18215, 29144, 36430, 72860, 145720, 987253, 1974506, 3949012, 4936265, 7898024, 9872530, 19745060, 39490120]

約数ペア:

[(1, 39490120), (2, 19745060), (4, 9872530), (5, 7898024), (8, 4936265), (10, 3949012), (20, 1974506), (40, 987253), (271, 145720), (542, 72860), (1084, 36430), (1355, 29144), (2168, 18215), (2710, 14572), (3643, 10840), (5420, 7286)]