18576688

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:162

約数の個数: 80

約数和(自身を含む): 41552896

約数和(自身を除く): 22976208

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 43, 52, 62, 67, 86, 104, 124, 134, 172, 208, 248, 268, 344, 403, 496, 536, 559, 688, 806, 871, 1072, 1118, 1333, 1612, 1742, 2077, 2236, 2666, 2881, 3224, 3484, 4154, 4472, 5332, 5762, 6448, 6968, 8308, 8944, 10664, 11524, 13936, 16616, 17329, 21328, 23048, 27001, 33232, 34658, 37453, 46096, 54002, 69316, 74906, 89311, 108004, 138632, 149812, 178622, 216008, 277264, 299624, 357244, 432016, 599248, 714488, 1161043, 1428976, 2322086, 4644172, 9288344, 18576688]

約数ペア:

[(1, 18576688), (2, 9288344), (4, 4644172), (8, 2322086), (13, 1428976), (16, 1161043), (26, 714488), (31, 599248), (43, 432016), (52, 357244), (62, 299624), (67, 277264), (86, 216008), (104, 178622), (124, 149812), (134, 138632), (172, 108004), (208, 89311), (248, 74906), (268, 69316), (344, 54002), (403, 46096), (496, 37453), (536, 34658), (559, 33232), (688, 27001), (806, 23048), (871, 21328), (1072, 17329), (1118, 16616), (1333, 13936), (1612, 11524), (1742, 10664), (2077, 8944), (2236, 8308), (2666, 6968), (2881, 6448), (3224, 5762), (3484, 5332), (4154, 4472)]