20151236

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{367}}^1$

素因数の和:468

約数の個数: 48

約数和(自身を含む): 42287616

約数和(自身を除く): 22136380

約数列:

[1, 2, 4, 7, 14, 28, 37, 53, 74, 106, 148, 212, 259, 367, 371, 518, 734, 742, 1036, 1468, 1484, 1961, 2569, 3922, 5138, 7844, 10276, 13579, 13727, 19451, 27158, 27454, 38902, 54316, 54908, 77804, 95053, 136157, 190106, 272314, 380212, 544628, 719687, 1439374, 2878748, 5037809, 10075618, 20151236]

約数ペア:

[(1, 20151236), (2, 10075618), (4, 5037809), (7, 2878748), (14, 1439374), (28, 719687), (37, 544628), (53, 380212), (74, 272314), (106, 190106), (148, 136157), (212, 95053), (259, 77804), (367, 54908), (371, 54316), (518, 38902), (734, 27454), (742, 27158), (1036, 19451), (1468, 13727), (1484, 13579), (1961, 10276), (2569, 7844), (3922, 5138)]