20390532

素因数分解:

$2^2\times 3^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 48840960

約数和(自身を除く): 28450428

約数列:

[1, 2, 3, 4, 6, 12, 79, 137, 157, 158, 237, 274, 314, 316, 411, 471, 474, 548, 628, 822, 942, 948, 1644, 1884, 10823, 12403, 21509, 21646, 24806, 32469, 37209, 43018, 43292, 49612, 64527, 64938, 74418, 86036, 129054, 129876, 148836, 258108, 1699211, 3398422, 5097633, 6796844, 10195266, 20390532]

約数ペア:

[(1, 20390532), (2, 10195266), (3, 6796844), (4, 5097633), (6, 3398422), (12, 1699211), (79, 258108), (137, 148836), (157, 129876), (158, 129054), (237, 86036), (274, 74418), (314, 64938), (316, 64527), (411, 49612), (471, 43292), (474, 43018), (548, 37209), (628, 32469), (822, 24806), (942, 21646), (948, 21509), (1644, 12403), (1884, 10823)]