18723265

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:118

約数の個数: 48

約数和(自身を含む): 27651456

約数和(自身を除く): 8928191

約数列:

[1, 5, 11, 19, 23, 41, 55, 95, 115, 205, 209, 253, 361, 437, 451, 779, 943, 1045, 1265, 1805, 2185, 2255, 3895, 3971, 4715, 4807, 8303, 8569, 10373, 14801, 17917, 19855, 24035, 41515, 42845, 51865, 74005, 89585, 91333, 162811, 197087, 340423, 456665, 814055, 985435, 1702115, 3744653, 18723265]

約数ペア:

[(1, 18723265), (5, 3744653), (11, 1702115), (19, 985435), (23, 814055), (41, 456665), (55, 340423), (95, 197087), (115, 162811), (205, 91333), (209, 89585), (253, 74005), (361, 51865), (437, 42845), (451, 41515), (779, 24035), (943, 19855), (1045, 17917), (1265, 14801), (1805, 10373), (2185, 8569), (2255, 8303), (3895, 4807), (3971, 4715)]