19798460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2903}}^1$

素因数の和:2954

約数の個数: 48

約数和(自身を含む): 46835712

約数和(自身を除く): 27037252

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 2903, 3410, 5806, 6820, 11612, 14515, 29030, 31933, 58060, 63866, 89993, 127732, 159665, 179986, 319330, 359972, 449965, 638660, 899930, 989923, 1799860, 1979846, 3959692, 4949615, 9899230, 19798460]

約数ペア:

[(1, 19798460), (2, 9899230), (4, 4949615), (5, 3959692), (10, 1979846), (11, 1799860), (20, 989923), (22, 899930), (31, 638660), (44, 449965), (55, 359972), (62, 319330), (110, 179986), (124, 159665), (155, 127732), (220, 89993), (310, 63866), (341, 58060), (620, 31933), (682, 29030), (1364, 14515), (1705, 11612), (2903, 6820), (3410, 5806)]