280589080

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{449}}^1\times {\mathrm{919}}^1$

素因数の和:1396

約数の個数: 64

約数和(自身を含む): 670680000

約数和(自身を除く): 390090920

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 449, 680, 898, 919, 1796, 1838, 2245, 3592, 3676, 4490, 4595, 7352, 7633, 8980, 9190, 15266, 15623, 17960, 18380, 30532, 31246, 36760, 38165, 61064, 62492, 76330, 78115, 124984, 152660, 156230, 305320, 312460, 412631, 624920, 825262, 1650524, 2063155, 3301048, 4126310, 7014727, 8252620, 14029454, 16505240, 28058908, 35073635, 56117816, 70147270, 140294540, 280589080]

約数ペア:

[(1, 280589080), (2, 140294540), (4, 70147270), (5, 56117816), (8, 35073635), (10, 28058908), (17, 16505240), (20, 14029454), (34, 8252620), (40, 7014727), (68, 4126310), (85, 3301048), (136, 2063155), (170, 1650524), (340, 825262), (449, 624920), (680, 412631), (898, 312460), (919, 305320), (1796, 156230), (1838, 152660), (2245, 124984), (3592, 78115), (3676, 76330), (4490, 62492), (4595, 61064), (7352, 38165), (7633, 36760), (8980, 31246), (9190, 30532), (15266, 18380), (15623, 17960)]