19864832

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:203

約数の個数: 72

約数和(自身を含む): 43954176

約数和(自身を除く): 24089344

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 47, 52, 64, 94, 104, 127, 128, 188, 208, 254, 256, 376, 416, 508, 611, 752, 832, 1016, 1222, 1504, 1651, 1664, 2032, 2444, 3008, 3302, 3328, 4064, 4888, 5969, 6016, 6604, 8128, 9776, 11938, 12032, 13208, 16256, 19552, 23876, 26416, 32512, 39104, 47752, 52832, 77597, 78208, 95504, 105664, 155194, 156416, 191008, 211328, 310388, 382016, 422656, 620776, 764032, 1241552, 1528064, 2483104, 4966208, 9932416, 19864832]

約数ペア:

[(1, 19864832), (2, 9932416), (4, 4966208), (8, 2483104), (13, 1528064), (16, 1241552), (26, 764032), (32, 620776), (47, 422656), (52, 382016), (64, 310388), (94, 211328), (104, 191008), (127, 156416), (128, 155194), (188, 105664), (208, 95504), (254, 78208), (256, 77597), (376, 52832), (416, 47752), (508, 39104), (611, 32512), (752, 26416), (832, 23876), (1016, 19552), (1222, 16256), (1504, 13208), (1651, 12032), (1664, 11938), (2032, 9776), (2444, 8128), (3008, 6604), (3302, 6016), (3328, 5969), (4064, 4888)]