19783465

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{193}}^1$

素因数の和:313

約数の個数: 32

約数和(自身を含む): 27377280

約数和(自身を除く): 7593815

約数列:

[1, 5, 13, 19, 65, 83, 95, 193, 247, 415, 965, 1079, 1235, 1577, 2509, 3667, 5395, 7885, 12545, 16019, 18335, 20501, 47671, 80095, 102505, 208247, 238355, 304361, 1041235, 1521805, 3956693, 19783465]

約数ペア:

[(1, 19783465), (5, 3956693), (13, 1521805), (19, 1041235), (65, 304361), (83, 238355), (95, 208247), (193, 102505), (247, 80095), (415, 47671), (965, 20501), (1079, 18335), (1235, 16019), (1577, 12545), (2509, 7885), (3667, 5395)]