2660401960

素因数分解:

$2^3\times 5^1\times {\mathrm{66510049}}^1$

素因数の和:66510060

約数の個数: 16

約数和(自身を含む): 5985904500

約数和(自身を除く): 3325502540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 66510049, 133020098, 266040196, 332550245, 532080392, 665100490, 1330200980, 2660401960]

約数ペア:

[(1, 2660401960), (2, 1330200980), (4, 665100490), (5, 532080392), (8, 332550245), (10, 266040196), (20, 133020098), (40, 66510049)]