18190315

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:164

約数の個数: 48

約数和(自身を含む): 27406080

約数和(自身を除く): 9215765

約数列:

[1, 5, 11, 13, 19, 55, 65, 95, 103, 143, 169, 209, 247, 515, 715, 845, 1045, 1133, 1235, 1339, 1859, 1957, 2717, 3211, 5665, 6695, 9295, 9785, 13585, 14729, 16055, 17407, 21527, 25441, 35321, 73645, 87035, 107635, 127205, 176605, 191477, 279851, 330733, 957385, 1399255, 1653665, 3638063, 18190315]

約数ペア:

[(1, 18190315), (5, 3638063), (11, 1653665), (13, 1399255), (19, 957385), (55, 330733), (65, 279851), (95, 191477), (103, 176605), (143, 127205), (169, 107635), (209, 87035), (247, 73645), (515, 35321), (715, 25441), (845, 21527), (1045, 17407), (1133, 16055), (1235, 14729), (1339, 13585), (1859, 9785), (1957, 9295), (2717, 6695), (3211, 5665)]