39740920

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{4157}}^1$

素因数の和:4407

約数の個数: 32

約数和(自身を含む): 89812800

約数和(自身を除く): 50071880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2390, 4157, 4780, 8314, 9560, 16628, 20785, 33256, 41570, 83140, 166280, 993523, 1987046, 3974092, 4967615, 7948184, 9935230, 19870460, 39740920]

約数ペア:

[(1, 39740920), (2, 19870460), (4, 9935230), (5, 7948184), (8, 4967615), (10, 3974092), (20, 1987046), (40, 993523), (239, 166280), (478, 83140), (956, 41570), (1195, 33256), (1912, 20785), (2390, 16628), (4157, 9560), (4780, 8314)]