278319220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{17033}}^1$

素因数の和:17104

約数の個数: 48

約数和(自身を含む): 629576640

約数和(自身を除く): 351257420

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 172, 190, 215, 380, 430, 817, 860, 1634, 3268, 4085, 8170, 16340, 17033, 34066, 68132, 85165, 170330, 323627, 340660, 647254, 732419, 1294508, 1464838, 1618135, 2929676, 3236270, 3662095, 6472540, 7324190, 13915961, 14648380, 27831922, 55663844, 69579805, 139159610, 278319220]

約数ペア:

[(1, 278319220), (2, 139159610), (4, 69579805), (5, 55663844), (10, 27831922), (19, 14648380), (20, 13915961), (38, 7324190), (43, 6472540), (76, 3662095), (86, 3236270), (95, 2929676), (172, 1618135), (190, 1464838), (215, 1294508), (380, 732419), (430, 647254), (817, 340660), (860, 323627), (1634, 170330), (3268, 85165), (4085, 68132), (8170, 34066), (16340, 17033)]