20217540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1301}}^1$

素因数の和:1357

約数の個数: 96

約数和(自身を含む): 66495744

約数和(自身を除く): 46278204

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 37, 42, 60, 70, 74, 84, 105, 111, 140, 148, 185, 210, 222, 259, 370, 420, 444, 518, 555, 740, 777, 1036, 1110, 1295, 1301, 1554, 2220, 2590, 2602, 3108, 3885, 3903, 5180, 5204, 6505, 7770, 7806, 9107, 13010, 15540, 15612, 18214, 19515, 26020, 27321, 36428, 39030, 45535, 48137, 54642, 78060, 91070, 96274, 109284, 136605, 144411, 182140, 192548, 240685, 273210, 288822, 336959, 481370, 546420, 577644, 673918, 722055, 962740, 1010877, 1347836, 1444110, 1684795, 2021754, 2888220, 3369590, 4043508, 5054385, 6739180, 10108770, 20217540]

約数ペア:

[(1, 20217540), (2, 10108770), (3, 6739180), (4, 5054385), (5, 4043508), (6, 3369590), (7, 2888220), (10, 2021754), (12, 1684795), (14, 1444110), (15, 1347836), (20, 1010877), (21, 962740), (28, 722055), (30, 673918), (35, 577644), (37, 546420), (42, 481370), (60, 336959), (70, 288822), (74, 273210), (84, 240685), (105, 192548), (111, 182140), (140, 144411), (148, 136605), (185, 109284), (210, 96274), (222, 91070), (259, 78060), (370, 54642), (420, 48137), (444, 45535), (518, 39030), (555, 36428), (740, 27321), (777, 26020), (1036, 19515), (1110, 18214), (1295, 15612), (1301, 15540), (1554, 13010), (2220, 9107), (2590, 7806), (2602, 7770), (3108, 6505), (3885, 5204), (3903, 5180)]