1806805

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2$

素因数の和:74

約数の個数: 48

約数和(自身を含む): 3072384

約数和(自身を除く): 1265579

約数列:

[1, 5, 7, 11, 13, 19, 35, 55, 65, 77, 91, 95, 133, 143, 209, 247, 361, 385, 455, 665, 715, 1001, 1045, 1235, 1463, 1729, 1805, 2527, 2717, 3971, 4693, 5005, 7315, 8645, 12635, 13585, 19019, 19855, 23465, 27797, 32851, 51623, 95095, 138985, 164255, 258115, 361361, 1806805]

約数ペア:

[(1, 1806805), (5, 361361), (7, 258115), (11, 164255), (13, 138985), (19, 95095), (35, 51623), (55, 32851), (65, 27797), (77, 23465), (91, 19855), (95, 19019), (133, 13585), (143, 12635), (209, 8645), (247, 7315), (361, 5005), (385, 4693), (455, 3971), (665, 2717), (715, 2527), (1001, 1805), (1045, 1729), (1235, 1463)]