20725656

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:229

約数の個数: 128

約数和(自身を含む): 64204800

約数和(自身を除く): 43479144

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 19, 21, 24, 28, 38, 42, 43, 56, 57, 76, 84, 86, 114, 129, 133, 151, 152, 168, 172, 228, 258, 266, 301, 302, 344, 399, 453, 456, 516, 532, 602, 604, 798, 817, 903, 906, 1032, 1057, 1064, 1204, 1208, 1596, 1634, 1806, 1812, 2114, 2408, 2451, 2869, 3171, 3192, 3268, 3612, 3624, 4228, 4902, 5719, 5738, 6342, 6493, 6536, 7224, 8456, 8607, 9804, 11438, 11476, 12684, 12986, 17157, 17214, 19479, 19608, 20083, 22876, 22952, 25368, 25972, 34314, 34428, 38958, 40166, 45451, 45752, 51944, 60249, 68628, 68856, 77916, 80332, 90902, 120498, 123367, 136353, 137256, 155832, 160664, 181804, 240996, 246734, 272706, 363608, 370101, 481992, 493468, 545412, 740202, 863569, 986936, 1090824, 1480404, 1727138, 2590707, 2960808, 3454276, 5181414, 6908552, 10362828, 20725656]

約数ペア:

[(1, 20725656), (2, 10362828), (3, 6908552), (4, 5181414), (6, 3454276), (7, 2960808), (8, 2590707), (12, 1727138), (14, 1480404), (19, 1090824), (21, 986936), (24, 863569), (28, 740202), (38, 545412), (42, 493468), (43, 481992), (56, 370101), (57, 363608), (76, 272706), (84, 246734), (86, 240996), (114, 181804), (129, 160664), (133, 155832), (151, 137256), (152, 136353), (168, 123367), (172, 120498), (228, 90902), (258, 80332), (266, 77916), (301, 68856), (302, 68628), (344, 60249), (399, 51944), (453, 45752), (456, 45451), (516, 40166), (532, 38958), (602, 34428), (604, 34314), (798, 25972), (817, 25368), (903, 22952), (906, 22876), (1032, 20083), (1057, 19608), (1064, 19479), (1204, 17214), (1208, 17157), (1596, 12986), (1634, 12684), (1806, 11476), (1812, 11438), (2114, 9804), (2408, 8607), (2451, 8456), (2869, 7224), (3171, 6536), (3192, 6493), (3268, 6342), (3612, 5738), (3624, 5719), (4228, 4902)]