81693580

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{1697}}^1$

素因数の和:1818

約数の個数: 48

約数和(自身を含む): 179716320

約数和(自身を除く): 98022740

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 83, 116, 145, 166, 290, 332, 415, 580, 830, 1660, 1697, 2407, 3394, 4814, 6788, 8485, 9628, 12035, 16970, 24070, 33940, 48140, 49213, 98426, 140851, 196852, 246065, 281702, 492130, 563404, 704255, 984260, 1408510, 2817020, 4084679, 8169358, 16338716, 20423395, 40846790, 81693580]

約数ペア:

[(1, 81693580), (2, 40846790), (4, 20423395), (5, 16338716), (10, 8169358), (20, 4084679), (29, 2817020), (58, 1408510), (83, 984260), (116, 704255), (145, 563404), (166, 492130), (290, 281702), (332, 246065), (415, 196852), (580, 140851), (830, 98426), (1660, 49213), (1697, 48140), (2407, 33940), (3394, 24070), (4814, 16970), (6788, 12035), (8485, 9628)]