81999672

素因数分解:

$2^3\times 3^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1\times {\mathrm{499}}^1$

素因数の和:716

約数の個数: 64

約数和(自身を含む): 211680000

約数和(自身を除く): 129680328

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 41, 82, 123, 164, 167, 246, 328, 334, 492, 499, 501, 668, 984, 998, 1002, 1336, 1497, 1996, 2004, 2994, 3992, 4008, 5988, 6847, 11976, 13694, 20459, 20541, 27388, 40918, 41082, 54776, 61377, 81836, 82164, 83333, 122754, 163672, 164328, 166666, 245508, 249999, 333332, 491016, 499998, 666664, 999996, 1999992, 3416653, 6833306, 10249959, 13666612, 20499918, 27333224, 40999836, 81999672]

約数ペア:

[(1, 81999672), (2, 40999836), (3, 27333224), (4, 20499918), (6, 13666612), (8, 10249959), (12, 6833306), (24, 3416653), (41, 1999992), (82, 999996), (123, 666664), (164, 499998), (167, 491016), (246, 333332), (328, 249999), (334, 245508), (492, 166666), (499, 164328), (501, 163672), (668, 122754), (984, 83333), (998, 82164), (1002, 81836), (1336, 61377), (1497, 54776), (1996, 41082), (2004, 40918), (2994, 27388), (3992, 20541), (4008, 20459), (5988, 13694), (6847, 11976)]