28087995

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{229}}^1$

素因数の和:304

約数の個数: 64

約数和(自身を含む): 52859520

約数和(自身を除く): 24771525

約数列:

[1, 3, 5, 13, 15, 17, 37, 39, 51, 65, 85, 111, 185, 195, 221, 229, 255, 481, 555, 629, 663, 687, 1105, 1145, 1443, 1887, 2405, 2977, 3145, 3315, 3435, 3893, 7215, 8177, 8473, 8931, 9435, 11679, 14885, 19465, 24531, 25419, 40885, 42365, 44655, 50609, 58395, 110149, 122655, 127095, 144041, 151827, 253045, 330447, 432123, 550745, 720205, 759135, 1652235, 1872533, 2160615, 5617599, 9362665, 28087995]

約数ペア:

[(1, 28087995), (3, 9362665), (5, 5617599), (13, 2160615), (15, 1872533), (17, 1652235), (37, 759135), (39, 720205), (51, 550745), (65, 432123), (85, 330447), (111, 253045), (185, 151827), (195, 144041), (221, 127095), (229, 122655), (255, 110149), (481, 58395), (555, 50609), (629, 44655), (663, 42365), (687, 40885), (1105, 25419), (1145, 24531), (1443, 19465), (1887, 14885), (2405, 11679), (2977, 9435), (3145, 8931), (3315, 8473), (3435, 8177), (3893, 7215)]