128465984

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{887}}^1$

素因数の和:1003

約数の個数: 56

約数和(自身を含む): 267053568

約数和(自身を除く): 138587584

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 73, 124, 146, 248, 292, 496, 584, 887, 992, 1168, 1774, 1984, 2263, 2336, 3548, 4526, 4672, 7096, 9052, 14192, 18104, 27497, 28384, 36208, 54994, 56768, 64751, 72416, 109988, 129502, 144832, 219976, 259004, 439952, 518008, 879904, 1036016, 1759808, 2007281, 2072032, 4014562, 4144064, 8029124, 16058248, 32116496, 64232992, 128465984]

約数ペア:

[(1, 128465984), (2, 64232992), (4, 32116496), (8, 16058248), (16, 8029124), (31, 4144064), (32, 4014562), (62, 2072032), (64, 2007281), (73, 1759808), (124, 1036016), (146, 879904), (248, 518008), (292, 439952), (496, 259004), (584, 219976), (887, 144832), (992, 129502), (1168, 109988), (1774, 72416), (1984, 64751), (2263, 56768), (2336, 54994), (3548, 36208), (4526, 28384), (4672, 27497), (7096, 18104), (9052, 14192)]