290050180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1063}}^1\times {\mathrm{1949}}^1$

素因数の和:3028

約数の個数: 48

約数和(自身を含む): 697132800

約数和(自身を除く): 407082620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1063, 1949, 2126, 3898, 4252, 5315, 7441, 7796, 9745, 10630, 13643, 14882, 19490, 21260, 27286, 29764, 37205, 38980, 54572, 68215, 74410, 136430, 148820, 272860, 2071787, 4143574, 8287148, 10358935, 14502509, 20717870, 29005018, 41435740, 58010036, 72512545, 145025090, 290050180]

約数ペア:

[(1, 290050180), (2, 145025090), (4, 72512545), (5, 58010036), (7, 41435740), (10, 29005018), (14, 20717870), (20, 14502509), (28, 10358935), (35, 8287148), (70, 4143574), (140, 2071787), (1063, 272860), (1949, 148820), (2126, 136430), (3898, 74410), (4252, 68215), (5315, 54572), (7441, 38980), (7796, 37205), (9745, 29764), (10630, 27286), (13643, 21260), (14882, 19490)]