25720528

素因数分解:

$2^4\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:180

約数の個数: 60

約数和(自身を含む): 54188868

約数和(自身を除く): 28468340

約数列:

[1, 2, 4, 8, 16, 19, 38, 61, 73, 76, 122, 146, 152, 244, 292, 304, 361, 488, 584, 722, 976, 1159, 1168, 1387, 1444, 2318, 2774, 2888, 4453, 4636, 5548, 5776, 8906, 9272, 11096, 17812, 18544, 22021, 22192, 26353, 35624, 44042, 52706, 71248, 84607, 88084, 105412, 169214, 176168, 210824, 338428, 352336, 421648, 676856, 1353712, 1607533, 3215066, 6430132, 12860264, 25720528]

約数ペア:

[(1, 25720528), (2, 12860264), (4, 6430132), (8, 3215066), (16, 1607533), (19, 1353712), (38, 676856), (61, 421648), (73, 352336), (76, 338428), (122, 210824), (146, 176168), (152, 169214), (244, 105412), (292, 88084), (304, 84607), (361, 71248), (488, 52706), (584, 44042), (722, 35624), (976, 26353), (1159, 22192), (1168, 22021), (1387, 18544), (1444, 17812), (2318, 11096), (2774, 9272), (2888, 8906), (4453, 5776), (4636, 5548)]