28884380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{1069}}^1$

素因数の和:1278

約数の個数: 48

約数和(自身を含む): 69746880

約数和(自身を除く): 40862500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 193, 386, 772, 965, 1069, 1351, 1930, 2138, 2702, 3860, 4276, 5345, 5404, 6755, 7483, 10690, 13510, 14966, 21380, 27020, 29932, 37415, 74830, 149660, 206317, 412634, 825268, 1031585, 1444219, 2063170, 2888438, 4126340, 5776876, 7221095, 14442190, 28884380]

約数ペア:

[(1, 28884380), (2, 14442190), (4, 7221095), (5, 5776876), (7, 4126340), (10, 2888438), (14, 2063170), (20, 1444219), (28, 1031585), (35, 825268), (70, 412634), (140, 206317), (193, 149660), (386, 74830), (772, 37415), (965, 29932), (1069, 27020), (1351, 21380), (1930, 14966), (2138, 13510), (2702, 10690), (3860, 7483), (4276, 6755), (5345, 5404)]