388565560

素因数分解:

$2^3\times 5^1\times {\mathrm{1277}}^1\times {\mathrm{7607}}^1$

素因数の和:8895

約数の個数: 32

約数和(自身を含む): 875072160

約数和(自身を除く): 486506600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1277, 2554, 5108, 6385, 7607, 10216, 12770, 15214, 25540, 30428, 38035, 51080, 60856, 76070, 152140, 304280, 9714139, 19428278, 38856556, 48570695, 77713112, 97141390, 194282780, 388565560]

約数ペア:

[(1, 388565560), (2, 194282780), (4, 97141390), (5, 77713112), (8, 48570695), (10, 38856556), (20, 19428278), (40, 9714139), (1277, 304280), (2554, 152140), (5108, 76070), (6385, 60856), (7607, 51080), (10216, 38035), (12770, 30428), (15214, 25540)]