256603910

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{401}}^1\times {\mathrm{719}}^1$

素因数の和:1216

約数の個数: 32

約数和(自身を含む): 468892800

約数和(自身を除く): 212288890

約数列:

[1, 2, 5, 10, 89, 178, 401, 445, 719, 802, 890, 1438, 2005, 3595, 4010, 7190, 35689, 63991, 71378, 127982, 178445, 288319, 319955, 356890, 576638, 639910, 1441595, 2883190, 25660391, 51320782, 128301955, 256603910]

約数ペア:

[(1, 256603910), (2, 128301955), (5, 51320782), (10, 25660391), (89, 2883190), (178, 1441595), (401, 639910), (445, 576638), (719, 356890), (802, 319955), (890, 288319), (1438, 178445), (2005, 127982), (3595, 71378), (4010, 63991), (7190, 35689)]