20809974656

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{38371}}^1$

素因数の和:38627

約数の個数: 64

約数和(自身を含む): 43836172800

約数和(自身を除く): 23026198144

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 223, 304, 446, 608, 892, 1216, 1784, 2432, 3568, 4237, 7136, 8474, 14272, 16948, 28544, 33896, 38371, 67792, 76742, 135584, 153484, 271168, 306968, 542336, 613936, 729049, 1227872, 1458098, 2455744, 2916196, 4911488, 5832392, 8556733, 11664784, 17113466, 23329568, 34226932, 46659136, 68453864, 93318272, 136907728, 162577927, 273815456, 325155854, 547630912, 650311708, 1095261824, 1300623416, 2601246832, 5202493664, 10404987328, 20809974656]

約数ペア:

[(1, 20809974656), (2, 10404987328), (4, 5202493664), (8, 2601246832), (16, 1300623416), (19, 1095261824), (32, 650311708), (38, 547630912), (64, 325155854), (76, 273815456), (128, 162577927), (152, 136907728), (223, 93318272), (304, 68453864), (446, 46659136), (608, 34226932), (892, 23329568), (1216, 17113466), (1784, 11664784), (2432, 8556733), (3568, 5832392), (4237, 4911488), (7136, 2916196), (8474, 2455744), (14272, 1458098), (16948, 1227872), (28544, 729049), (33896, 613936), (38371, 542336), (67792, 306968), (76742, 271168), (135584, 153484)]