20648664

素因数分解:

$2^3\times 3^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{337}}^1$

素因数の和:409

約数の個数: 96

約数和(自身を含む): 60109920

約数和(自身を除く): 39461256

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 36, 37, 46, 69, 72, 74, 92, 111, 138, 148, 184, 207, 222, 276, 296, 333, 337, 414, 444, 552, 666, 674, 828, 851, 888, 1011, 1332, 1348, 1656, 1702, 2022, 2553, 2664, 2696, 3033, 3404, 4044, 5106, 6066, 6808, 7659, 7751, 8088, 10212, 12132, 12469, 15318, 15502, 20424, 23253, 24264, 24938, 30636, 31004, 37407, 46506, 49876, 61272, 62008, 69759, 74814, 93012, 99752, 112221, 139518, 149628, 186024, 224442, 279036, 286787, 299256, 448884, 558072, 573574, 860361, 897768, 1147148, 1720722, 2294296, 2581083, 3441444, 5162166, 6882888, 10324332, 20648664]

約数ペア:

[(1, 20648664), (2, 10324332), (3, 6882888), (4, 5162166), (6, 3441444), (8, 2581083), (9, 2294296), (12, 1720722), (18, 1147148), (23, 897768), (24, 860361), (36, 573574), (37, 558072), (46, 448884), (69, 299256), (72, 286787), (74, 279036), (92, 224442), (111, 186024), (138, 149628), (148, 139518), (184, 112221), (207, 99752), (222, 93012), (276, 74814), (296, 69759), (333, 62008), (337, 61272), (414, 49876), (444, 46506), (552, 37407), (666, 31004), (674, 30636), (828, 24938), (851, 24264), (888, 23253), (1011, 20424), (1332, 15502), (1348, 15318), (1656, 12469), (1702, 12132), (2022, 10212), (2553, 8088), (2664, 7751), (2696, 7659), (3033, 6808), (3404, 6066), (4044, 5106)]