28168840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2719}}^1$

素因数の和:2774

約数の個数: 64

約数和(自身を含む): 74419200

約数和(自身を除く): 46250360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 185, 259, 280, 296, 370, 518, 740, 1036, 1295, 1480, 2072, 2590, 2719, 5180, 5438, 10360, 10876, 13595, 19033, 21752, 27190, 38066, 54380, 76132, 95165, 100603, 108760, 152264, 190330, 201206, 380660, 402412, 503015, 704221, 761320, 804824, 1006030, 1408442, 2012060, 2816884, 3521105, 4024120, 5633768, 7042210, 14084420, 28168840]

約数ペア:

[(1, 28168840), (2, 14084420), (4, 7042210), (5, 5633768), (7, 4024120), (8, 3521105), (10, 2816884), (14, 2012060), (20, 1408442), (28, 1006030), (35, 804824), (37, 761320), (40, 704221), (56, 503015), (70, 402412), (74, 380660), (140, 201206), (148, 190330), (185, 152264), (259, 108760), (280, 100603), (296, 95165), (370, 76132), (518, 54380), (740, 38066), (1036, 27190), (1295, 21752), (1480, 19033), (2072, 13595), (2590, 10876), (2719, 10360), (5180, 5438)]