81978360

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{23557}}^1$

素因数の和:23600

約数の個数: 64

約数和(自身を含む): 254426400

約数和(自身を除く): 172448040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 58, 60, 87, 116, 120, 145, 174, 232, 290, 348, 435, 580, 696, 870, 1160, 1740, 3480, 23557, 47114, 70671, 94228, 117785, 141342, 188456, 235570, 282684, 353355, 471140, 565368, 683153, 706710, 942280, 1366306, 1413420, 2049459, 2732612, 2826840, 3415765, 4098918, 5465224, 6831530, 8197836, 10247295, 13663060, 16395672, 20494590, 27326120, 40989180, 81978360]

約数ペア:

[(1, 81978360), (2, 40989180), (3, 27326120), (4, 20494590), (5, 16395672), (6, 13663060), (8, 10247295), (10, 8197836), (12, 6831530), (15, 5465224), (20, 4098918), (24, 3415765), (29, 2826840), (30, 2732612), (40, 2049459), (58, 1413420), (60, 1366306), (87, 942280), (116, 706710), (120, 683153), (145, 565368), (174, 471140), (232, 353355), (290, 282684), (348, 235570), (435, 188456), (580, 141342), (696, 117785), (870, 94228), (1160, 70671), (1740, 47114), (3480, 23557)]