127568660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{863}}^1$

素因数の和:1280

約数の個数: 48

約数和(自身を含む): 283046400

約数和(自身を除く): 155477740

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 389, 778, 863, 1556, 1726, 1945, 3452, 3890, 4315, 7391, 7780, 8630, 14782, 16397, 17260, 29564, 32794, 36955, 65588, 73910, 81985, 147820, 163970, 327940, 335707, 671414, 1342828, 1678535, 3357070, 6378433, 6714140, 12756866, 25513732, 31892165, 63784330, 127568660]

約数ペア:

[(1, 127568660), (2, 63784330), (4, 31892165), (5, 25513732), (10, 12756866), (19, 6714140), (20, 6378433), (38, 3357070), (76, 1678535), (95, 1342828), (190, 671414), (380, 335707), (389, 327940), (778, 163970), (863, 147820), (1556, 81985), (1726, 73910), (1945, 65588), (3452, 36955), (3890, 32794), (4315, 29564), (7391, 17260), (7780, 16397), (8630, 14782)]