7138893880

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{905951}}^1$

素因数の和:906159

約数の個数: 32

約数和(自身を含む): 16144064640

約数和(自身を除く): 9005170760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 905951, 1811902, 3623804, 4529755, 7247608, 9059510, 18119020, 36238040, 178472347, 356944694, 713889388, 892361735, 1427778776, 1784723470, 3569446940, 7138893880]

約数ペア:

[(1, 7138893880), (2, 3569446940), (4, 1784723470), (5, 1427778776), (8, 892361735), (10, 713889388), (20, 356944694), (40, 178472347), (197, 36238040), (394, 18119020), (788, 9059510), (985, 7247608), (1576, 4529755), (1970, 3623804), (3940, 1811902), (7880, 905951)]