38784920

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{4057}}^1$

素因数の和:4307

約数の個数: 32

約数和(自身を含む): 87652800

約数和(自身を除く): 48867880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2390, 4057, 4780, 8114, 9560, 16228, 20285, 32456, 40570, 81140, 162280, 969623, 1939246, 3878492, 4848115, 7756984, 9696230, 19392460, 38784920]

約数ペア:

[(1, 38784920), (2, 19392460), (4, 9696230), (5, 7756984), (8, 4848115), (10, 3878492), (20, 1939246), (40, 969623), (239, 162280), (478, 81140), (956, 40570), (1195, 32456), (1912, 20285), (2390, 16228), (4057, 9560), (4780, 8114)]