128528673

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{349}}^1$

素因数の和:462

約数の個数: 64

約数和(自身を含む): 225792000

約数和(自身を除く): 97263327

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 71, 91, 133, 213, 247, 273, 349, 399, 497, 741, 923, 1047, 1349, 1491, 1729, 2443, 2769, 4047, 4537, 5187, 6461, 6631, 7329, 9443, 13611, 17537, 19383, 19893, 24779, 28329, 31759, 46417, 52611, 74337, 86203, 95277, 122759, 139251, 173453, 258609, 322127, 368277, 470801, 520359, 603421, 966381, 1412403, 1810263, 2254889, 3295607, 6120413, 6764667, 9886821, 18361239, 42842891, 128528673]

約数ペア:

[(1, 128528673), (3, 42842891), (7, 18361239), (13, 9886821), (19, 6764667), (21, 6120413), (39, 3295607), (57, 2254889), (71, 1810263), (91, 1412403), (133, 966381), (213, 603421), (247, 520359), (273, 470801), (349, 368277), (399, 322127), (497, 258609), (741, 173453), (923, 139251), (1047, 122759), (1349, 95277), (1491, 86203), (1729, 74337), (2443, 52611), (2769, 46417), (4047, 31759), (4537, 28329), (5187, 24779), (6461, 19893), (6631, 19383), (7329, 17537), (9443, 13611)]