128515881

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 197323776

約数和(自身を除く): 68807895

約数列:

[1, 3, 13, 23, 39, 69, 103, 107, 169, 299, 309, 321, 507, 897, 1339, 1391, 2369, 2461, 3887, 4017, 4173, 7107, 7383, 11021, 11661, 17407, 18083, 30797, 31993, 33063, 52221, 54249, 92391, 95979, 143273, 253483, 400361, 415909, 429819, 760449, 1201083, 1247727, 1862549, 3295279, 5587647, 9885837, 42838627, 128515881]

約数ペア:

[(1, 128515881), (3, 42838627), (13, 9885837), (23, 5587647), (39, 3295279), (69, 1862549), (103, 1247727), (107, 1201083), (169, 760449), (299, 429819), (309, 415909), (321, 400361), (507, 253483), (897, 143273), (1339, 95979), (1391, 92391), (2369, 54249), (2461, 52221), (3887, 33063), (4017, 31993), (4173, 30797), (7107, 18083), (7383, 17407), (11021, 11661)]