280758828

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{691}}^2$

素因数の和:1403

約数の個数: 54

約数和(自身を含む): 763164108

約数和(自身を除く): 482405280

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 588, 691, 1382, 2073, 2764, 4146, 4837, 8292, 9674, 14511, 19348, 29022, 33859, 58044, 67718, 101577, 135436, 203154, 406308, 477481, 954962, 1432443, 1909924, 2864886, 3342367, 5729772, 6684734, 10027101, 13369468, 20054202, 23396569, 40108404, 46793138, 70189707, 93586276, 140379414, 280758828]

約数ペア:

[(1, 280758828), (2, 140379414), (3, 93586276), (4, 70189707), (6, 46793138), (7, 40108404), (12, 23396569), (14, 20054202), (21, 13369468), (28, 10027101), (42, 6684734), (49, 5729772), (84, 3342367), (98, 2864886), (147, 1909924), (196, 1432443), (294, 954962), (588, 477481), (691, 406308), (1382, 203154), (2073, 135436), (2764, 101577), (4146, 67718), (4837, 58044), (8292, 33859), (9674, 29022), (14511, 19348)]