25581904

素因数分解:

$2^4\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:192

約数の個数: 60

約数和(自身を含む): 54047136

約数和(自身を除く): 28465232

約数列:

[1, 2, 4, 8, 16, 19, 38, 43, 76, 86, 103, 152, 172, 206, 304, 344, 361, 412, 688, 722, 817, 824, 1444, 1634, 1648, 1957, 2888, 3268, 3914, 4429, 5776, 6536, 7828, 8858, 13072, 15523, 15656, 17716, 31046, 31312, 35432, 37183, 62092, 70864, 74366, 84151, 124184, 148732, 168302, 248368, 297464, 336604, 594928, 673208, 1346416, 1598869, 3197738, 6395476, 12790952, 25581904]

約数ペア:

[(1, 25581904), (2, 12790952), (4, 6395476), (8, 3197738), (16, 1598869), (19, 1346416), (38, 673208), (43, 594928), (76, 336604), (86, 297464), (103, 248368), (152, 168302), (172, 148732), (206, 124184), (304, 84151), (344, 74366), (361, 70864), (412, 62092), (688, 37183), (722, 35432), (817, 31312), (824, 31046), (1444, 17716), (1634, 15656), (1648, 15523), (1957, 13072), (2888, 8858), (3268, 7828), (3914, 6536), (4429, 5776)]