19817168

素因数分解:

$2^4\times 7^3\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:209

約数の個数: 80

約数和(自身を含む): 47020800

約数和(自身を除く): 27203632

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 49, 56, 92, 98, 112, 157, 161, 184, 196, 314, 322, 343, 368, 392, 628, 644, 686, 784, 1099, 1127, 1256, 1288, 1372, 2198, 2254, 2512, 2576, 2744, 3611, 4396, 4508, 5488, 7222, 7693, 7889, 8792, 9016, 14444, 15386, 15778, 17584, 18032, 25277, 28888, 30772, 31556, 50554, 53851, 57776, 61544, 63112, 101108, 107702, 123088, 126224, 176939, 202216, 215404, 353878, 404432, 430808, 707756, 861616, 1238573, 1415512, 2477146, 2831024, 4954292, 9908584, 19817168]

約数ペア:

[(1, 19817168), (2, 9908584), (4, 4954292), (7, 2831024), (8, 2477146), (14, 1415512), (16, 1238573), (23, 861616), (28, 707756), (46, 430808), (49, 404432), (56, 353878), (92, 215404), (98, 202216), (112, 176939), (157, 126224), (161, 123088), (184, 107702), (196, 101108), (314, 63112), (322, 61544), (343, 57776), (368, 53851), (392, 50554), (628, 31556), (644, 30772), (686, 28888), (784, 25277), (1099, 18032), (1127, 17584), (1256, 15778), (1288, 15386), (1372, 14444), (2198, 9016), (2254, 8792), (2512, 7889), (2576, 7693), (2744, 7222), (3611, 5488), (4396, 4508)]