20382876

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{239}}^1$

素因数の和:375

約数の個数: 72

約数和(自身を含む): 54512640

約数和(自身を除く): 34129764

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 103, 138, 206, 207, 239, 276, 309, 412, 414, 478, 618, 717, 828, 927, 956, 1236, 1434, 1854, 2151, 2369, 2868, 3708, 4302, 4738, 5497, 7107, 8604, 9476, 10994, 14214, 16491, 21321, 21988, 24617, 28428, 32982, 42642, 49234, 49473, 65964, 73851, 85284, 98468, 98946, 147702, 197892, 221553, 295404, 443106, 566191, 886212, 1132382, 1698573, 2264764, 3397146, 5095719, 6794292, 10191438, 20382876]

約数ペア:

[(1, 20382876), (2, 10191438), (3, 6794292), (4, 5095719), (6, 3397146), (9, 2264764), (12, 1698573), (18, 1132382), (23, 886212), (36, 566191), (46, 443106), (69, 295404), (92, 221553), (103, 197892), (138, 147702), (206, 98946), (207, 98468), (239, 85284), (276, 73851), (309, 65964), (412, 49473), (414, 49234), (478, 42642), (618, 32982), (717, 28428), (828, 24617), (927, 21988), (956, 21321), (1236, 16491), (1434, 14214), (1854, 10994), (2151, 9476), (2369, 8604), (2868, 7107), (3708, 5497), (4302, 4738)]