661701248

素因数分解:

$2^7\times {\mathrm{13}}^4\times {\mathrm{181}}^1$

素因数の和:247

約数の個数: 80

約数和(自身を含む): 1435971810

約数和(自身を除く): 774270562

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 169, 181, 208, 338, 362, 416, 676, 724, 832, 1352, 1448, 1664, 2197, 2353, 2704, 2896, 4394, 4706, 5408, 5792, 8788, 9412, 10816, 11584, 17576, 18824, 21632, 23168, 28561, 30589, 35152, 37648, 57122, 61178, 70304, 75296, 114244, 122356, 140608, 150592, 228488, 244712, 281216, 301184, 397657, 456976, 489424, 795314, 913952, 978848, 1590628, 1827904, 1957696, 3181256, 3655808, 3915392, 5169541, 6362512, 10339082, 12725024, 20678164, 25450048, 41356328, 50900096, 82712656, 165425312, 330850624, 661701248]

約数ペア:

[(1, 661701248), (2, 330850624), (4, 165425312), (8, 82712656), (13, 50900096), (16, 41356328), (26, 25450048), (32, 20678164), (52, 12725024), (64, 10339082), (104, 6362512), (128, 5169541), (169, 3915392), (181, 3655808), (208, 3181256), (338, 1957696), (362, 1827904), (416, 1590628), (676, 978848), (724, 913952), (832, 795314), (1352, 489424), (1448, 456976), (1664, 397657), (2197, 301184), (2353, 281216), (2704, 244712), (2896, 228488), (4394, 150592), (4706, 140608), (5408, 122356), (5792, 114244), (8788, 75296), (9412, 70304), (10816, 61178), (11584, 57122), (17576, 37648), (18824, 35152), (21632, 30589), (23168, 28561)]