1280128

素因数分解:

$2^7\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:224

約数の個数: 32

約数和(自身を含む): 2604060

約数和(自身を除く): 1323932

約数列:

[1, 2, 4, 8, 16, 32, 64, 73, 128, 137, 146, 274, 292, 548, 584, 1096, 1168, 2192, 2336, 4384, 4672, 8768, 9344, 10001, 17536, 20002, 40004, 80008, 160016, 320032, 640064, 1280128]

約数ペア:

[(1, 1280128), (2, 640064), (4, 320032), (8, 160016), (16, 80008), (32, 40004), (64, 20002), (73, 17536), (128, 10001), (137, 9344), (146, 8768), (274, 4672), (292, 4384), (548, 2336), (584, 2192), (1096, 1168)]