20504055

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{79}}^1$

素因数の和:133

約数の個数: 64

約数和(自身を含む): 39352320

約数和(自身を除く): 18848265

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 79, 121, 143, 165, 195, 237, 363, 395, 429, 605, 715, 869, 1027, 1185, 1331, 1573, 1815, 2145, 2607, 3081, 3993, 4345, 4719, 5135, 6655, 7865, 9559, 11297, 13035, 15405, 17303, 19965, 23595, 28677, 33891, 47795, 51909, 56485, 86515, 105149, 124267, 143385, 169455, 259545, 315447, 372801, 525745, 621335, 1366937, 1577235, 1864005, 4100811, 6834685, 20504055]

約数ペア:

[(1, 20504055), (3, 6834685), (5, 4100811), (11, 1864005), (13, 1577235), (15, 1366937), (33, 621335), (39, 525745), (55, 372801), (65, 315447), (79, 259545), (121, 169455), (143, 143385), (165, 124267), (195, 105149), (237, 86515), (363, 56485), (395, 51909), (429, 47795), (605, 33891), (715, 28677), (869, 23595), (1027, 19965), (1185, 17303), (1331, 15405), (1573, 13035), (1815, 11297), (2145, 9559), (2607, 7865), (3081, 6655), (3993, 5135), (4345, 4719)]