19440265

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{241}}^1$

素因数の和:349

約数の個数: 32

約数和(自身を含む): 27076896

約数和(自身を除く): 7636631

約数列:

[1, 5, 13, 17, 65, 73, 85, 221, 241, 365, 949, 1105, 1205, 1241, 3133, 4097, 4745, 6205, 15665, 16133, 17593, 20485, 53261, 80665, 87965, 228709, 266305, 299081, 1143545, 1495405, 3888053, 19440265]

約数ペア:

[(1, 19440265), (5, 3888053), (13, 1495405), (17, 1143545), (65, 299081), (73, 266305), (85, 228709), (221, 87965), (241, 80665), (365, 53261), (949, 20485), (1105, 17593), (1205, 16133), (1241, 15665), (3133, 6205), (4097, 4745)]