28817320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1019}}^1$

素因数の和:1138

約数の個数: 64

約数和(自身を含む): 74908800

約数和(自身を除く): 46091480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 101, 140, 202, 280, 404, 505, 707, 808, 1010, 1019, 1414, 2020, 2038, 2828, 3535, 4040, 4076, 5095, 5656, 7070, 7133, 8152, 10190, 14140, 14266, 20380, 28280, 28532, 35665, 40760, 57064, 71330, 102919, 142660, 205838, 285320, 411676, 514595, 720433, 823352, 1029190, 1440866, 2058380, 2881732, 3602165, 4116760, 5763464, 7204330, 14408660, 28817320]

約数ペア:

[(1, 28817320), (2, 14408660), (4, 7204330), (5, 5763464), (7, 4116760), (8, 3602165), (10, 2881732), (14, 2058380), (20, 1440866), (28, 1029190), (35, 823352), (40, 720433), (56, 514595), (70, 411676), (101, 285320), (140, 205838), (202, 142660), (280, 102919), (404, 71330), (505, 57064), (707, 40760), (808, 35665), (1010, 28532), (1019, 28280), (1414, 20380), (2020, 14266), (2038, 14140), (2828, 10190), (3535, 8152), (4040, 7133), (4076, 7070), (5095, 5656)]