18862280

素因数分解:

$2^3\times 5^1\times {\mathrm{269}}^1\times {\mathrm{1753}}^1$

素因数の和:2033

約数の個数: 32

約数和(自身を含む): 42622200

約数和(自身を除く): 23759920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 269, 538, 1076, 1345, 1753, 2152, 2690, 3506, 5380, 7012, 8765, 10760, 14024, 17530, 35060, 70120, 471557, 943114, 1886228, 2357785, 3772456, 4715570, 9431140, 18862280]

約数ペア:

[(1, 18862280), (2, 9431140), (4, 4715570), (5, 3772456), (8, 2357785), (10, 1886228), (20, 943114), (40, 471557), (269, 70120), (538, 35060), (1076, 17530), (1345, 14024), (1753, 10760), (2152, 8765), (2690, 7012), (3506, 5380)]