20740305

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1193}}^1$

素因数の和:1281

約数の個数: 32

約数和(自身を含む): 35533440

約数和(自身を除く): 14793135

約数列:

[1, 3, 5, 15, 19, 57, 61, 95, 183, 285, 305, 915, 1159, 1193, 3477, 3579, 5795, 5965, 17385, 17895, 22667, 68001, 72773, 113335, 218319, 340005, 363865, 1091595, 1382687, 4148061, 6913435, 20740305]

約数ペア:

[(1, 20740305), (3, 6913435), (5, 4148061), (15, 1382687), (19, 1091595), (57, 363865), (61, 340005), (95, 218319), (183, 113335), (285, 72773), (305, 68001), (915, 22667), (1159, 17895), (1193, 17385), (3477, 5965), (3579, 5795)]