19904579135

素因数分解:

$5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1153}}^1\times {\mathrm{6947}}^1$

素因数の和:8183

約数の個数: 32

約数和(自身を含む): 27710180352

約数和(自身を除く): 7805601217

約数列:

[1, 5, 7, 35, 71, 355, 497, 1153, 2485, 5765, 6947, 8071, 34735, 40355, 48629, 81863, 243145, 409315, 493237, 573041, 2466185, 2865205, 3452659, 8009891, 17263295, 40049455, 56069237, 280346185, 568702261, 2843511305, 3980915827, 19904579135]

約数ペア:

[(1, 19904579135), (5, 3980915827), (7, 2843511305), (35, 568702261), (71, 280346185), (355, 56069237), (497, 40049455), (1153, 17263295), (2485, 8009891), (5765, 3452659), (6947, 2865205), (8071, 2466185), (34735, 573041), (40355, 493237), (48629, 409315), (81863, 243145)]