42870040

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{7823}}^1$

素因数の和:7971

約数の個数: 32

約数和(自身を含む): 97174080

約数和(自身を除く): 54304040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 7823, 15646, 31292, 39115, 62584, 78230, 156460, 312920, 1071751, 2143502, 4287004, 5358755, 8574008, 10717510, 21435020, 42870040]

約数ペア:

[(1, 42870040), (2, 21435020), (4, 10717510), (5, 8574008), (8, 5358755), (10, 4287004), (20, 2143502), (40, 1071751), (137, 312920), (274, 156460), (548, 78230), (685, 62584), (1096, 39115), (1370, 31292), (2740, 15646), (5480, 7823)]