2877980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 7041216

約数和(自身を除く): 4163236

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 337, 427, 610, 674, 854, 1220, 1348, 1685, 1708, 2135, 2359, 3370, 4270, 4718, 6740, 8540, 9436, 11795, 20557, 23590, 41114, 47180, 82228, 102785, 143899, 205570, 287798, 411140, 575596, 719495, 1438990, 2877980]

約数ペア:

[(1, 2877980), (2, 1438990), (4, 719495), (5, 575596), (7, 411140), (10, 287798), (14, 205570), (20, 143899), (28, 102785), (35, 82228), (61, 47180), (70, 41114), (122, 23590), (140, 20557), (244, 11795), (305, 9436), (337, 8540), (427, 6740), (610, 4718), (674, 4270), (854, 3370), (1220, 2359), (1348, 2135), (1685, 1708)]